Statistical Data Collections  
From PoliSciData.com (List generated Oct 25, 2020)

  1. @unitedstates Project, The
    https://theunitedstates.io/

  2. Adjusted Interest Group Scores
    http://timgroseclose.com/academic-stuff

  3. Africa Information Highway
    http://dataportal.opendataforafrica.org/

  4. African Dev. Bank Group Data Portal
    https://projectsportal.afdb.org/dataportal/?lang=en

  5. Afrobarometer Data Collection
    http://www.afrobarometer.org/data

  6. Agency Data
    https://agencydata.wordpress.com/

  7. AidData
    https://www.aiddata.org/

  8. Aids Flows
    http://www.aidflows.org/

  9. American Ideology Project
    http://americanideologyproject.com/

  10. American Legislatures Project
    https://americanlegislatures.com/

  11. American National Election Studies
    https://electionstudies.org/

  12. American Presidency Project
    https://www.presidency.ucsb.edu/index.php

  13. Amsterdam Institute for Advanced Labour Studies
    http://www.uva-aias.net/en/home

  14. Arab Barometer
    https://www.arabbarometer.org/

  15. Archigos
    http://www.rochester.edu/college/faculty/hgoemans/data.htm

  16. Armed Conflict Location & Event Data Project
    https://www.acleddata.com/

  17. Asian Barometer
    http://www.asianbarometer.org/

  18. Australian Election Study
    https://australianelectionstudy.org/

  19. Austrian National Election Study
    https://www.autnes.at/en/

  20. Authoritarian Regimes Dataset
    https://sites.google.com/site/authoritarianregimedataset/

  21. Autocratic Regime Data
    https://sites.psu.edu/dictators/

  22. Bayesian Corruption Index, The
    https://users.ugent.be/~sastanda/BCI/BCI.html

  23. Berlin Social Center
    https://www.wzb.eu/en

  24. Biographical Directory of Members of Congress
    http://bioguide.congress.gov/biosearch/biosearch.asp

  25. British Election Study
    https://www.britishelectionstudy.com/

  26. British Election Study
    https://www.britishelectionstudy.com/

  27. Brookings Institution Vital Statistics on Congress
    https://www.brookings.edu/multi-chapter-report/vital-statistics-on-congress/

  28. California Redistricting Database
    http://statewidedatabase.org/

  29. Canadian Election Study
    https://ces-eec.arts.ubc.ca/english-section/home/

  30. Caucasus Research Resource Centers
    https://caucasusbarometer.org/en/

  31. Census Data Center
    http://mcdc2.missouri.edu/

  32. Center for American Women and Politics
    https://cawp.rutgers.edu/

  33. Center for Political Studies
    http://www.isr.umich.edu/cps/index.html

  34. Center for Systematic Peace Datasets
    http://www.systemicpeace.org/inscrdata.html

  35. Centre for the Study of African Economies
    http://www.csae.ox.ac.uk/

  36. Change in Source of Leader Support
    http://www.chisols.org/

  37. Chapel Hill Expert Survey
    https://www.chesdata.eu/

  38. Charles Stewart's Congressional Data Page
    http://web.mit.edu/17.251/www/data_page.html

  39. Chicago Project on Security and Threats
    https://cpost.uchicago.edu/

  40. CIRI Human Rights Dataset
    http://www.humanrightsdata.com/

  41. Climate Change and African Political Stability
    https://www.strausscenter.org/ccaps/

  42. Cline Center for Advanced Social Research
    https://clinecenter.illinois.edu/

  43. Comparative Agendas Project
    https://www.comparativeagendas.net/

  44. Comparative Constitutions Project
    http://comparativeconstitutionsproject.org/

  45. Comparative Political Data Set
    http://www.cpds-data.org/index.php

  46. Comparative Study of Electoral Systems
    http://www.cses.org/

  47. Comparative Welfare Entitlements Dataset
    http://cwed2.org/

  48. Computational Event Data System
    http://eventdata.parusanalytics.com/index.html

  49. Congress Project, The
    https://www.thecongressproject.com/

  50. Congress Roll Call Vote Indexes (101-present)
    https://www.congress.gov/roll-call-votes

  51. Congressional Bills Project
    http://www.congressionalbills.org/

  52. Congressional District Data
    https://sites.google.com/a/colorado.edu/adler-scott/data/congressional-district-data

  53. Congressional Voting Data
    https://dataverse.harvard.edu/dataset.xhtml?persistentId=hdl:1902.1/10533

  54. Constituency-Level Elections Archive
    http://www.electiondataarchive.org/

  55. Constitute Project
    https://www.constituteproject.org/

  56. Continent of International Law
    http://www.isr.umich.edu/cps/coil/index.html

  57. Cooperative Congressional Election Study
    http://dataverse.harvard.edu/dataverse/cces

  58. Cooperative Congressional Election Study
    https://cces.gov.harvard.edu/

  59. Correlates of State Policy Project
    http://www.ippsr.msu.edu/public-policy/correlates-state-policy

  60. Correlates of War Project Datasets
    http://www.correlatesofwar.org/data-sets

  61. Corruption Cases Databases
    https://star.worldbank.org/corruption-cases/

  62. Corruption Perceptions Index
    https://www.transparency.org/research/cpi

  63. Cosponsorship Network Data
    http://jhfowler.ucsd.edu/cosponsorship.htm

  64. Counter Trafficking Data Collaborative
    https://www.ctdatacollaborative.org/

  65. Cross-National Time-Series Data Archive
    https://www.cntsdata.com/

  66. CShapes
    http://nils.weidmann.ws/projects/cshapes.html

  67. Daily Kos Elections Datasets
    https://www.dailykos.com/stories/2018/2/21/1742660/-The-ultimate-Daily-Kos-Elections-guide-to-all-of-our-data-sets

  68. Danish General Election Results
    https://github.com/Straubinger/folketingsvalg

  69. Danish National Election Study
    https://www.valgprojektet.dk/default.asp?l=eng

  70. Data Foundation
    https://www.datafoundation.org/

  71. Data on Governance
    https://www.prio.org/Data/Governance/

  72. Data.gov
    https://www.data.gov/

  73. Database on Ideology, Money in Politics, and Elections
    https://data.stanford.edu/dime

  74. Datahub for Field Experiments in Economics and Public Policy
    https://dataverse.harvard.edu/dataverse/DFEEP

  75. Datasets on Democratic Deepening and Regression
    http://ps.au.dk/forskning/forskningsprojekter/dedere/datasets/

  76. Datorium from GESIS
    https://datorium.gesis.org/xmlui/

  77. Democracy Barometer
    http://www.democracybarometer.org/index.html

  78. Design of Trade Agreements (DESTA) Database
    https://www.designoftradeagreements.org/

  79. Development Economics Datasets
    http://devecondata.blogspot.com/

  80. Digest of Educational Statistics
    https://nces.ed.gov/programs/digest/

  81. Digital Society Project
    http://digitalsocietyproject.org/

  82. Documenting the Now
    https://www.docnow.io/

  83. Dutch Parliamentary Voting Dataset
    https://dataverse.harvard.edu/dataverse/dutchparl

  84. Earl Babbie Research Center
    https://www.chapman.edu/wilkinson/research-centers/babbie-center/index.aspx

  85. Economic Fata from European Bank for Reconstruction & Development
    https://www.ebrd.com/what-we-do/economic-research-and-data/data.html

  86. Economic Freedom of the World
    https://www.fraserinstitute.org/economic-freedom/dataset

  87. Economics of National Security: Data Set Index
    http://nber.org/ens/feldstein/ENSA_Dataset_BlueTOC.pdf

  88. Educational Attainment Dataset
    http://www.barrolee.com/

  89. EEOC Litigation Project
    http://eeoclitigation.wustl.edu/

  90. Election Passport
    http://www.electionpassport.com/

  91. Electoral Integrity Project
    https://www.electoralintegrityproject.com/

  92. Electoral Law Indicators
    http://globalcit.eu/electoral-law-indicators/

  93. Electoral System Family Map App
    https://ncb13.shinyapps.io/ParlElections/

  94. Electoral Systems and the Personal Vote
    https://dataverse.harvard.edu/dataset.xhtml?persistentId=hdl:1902.1/17901

  95. Electoral Volatility in the European Parliament Elections
    https://cise.luiss.it/cise/dataset-of-electoral-volatility-in-the-european-parliament-elections-since-1979/

  96. Empirical Study of Religious Liberty Decisions
    http://courseweb.stthomas.edu/gcsisk/religion.study.data/cover.html

  97. Enterprise Surveys
    http://www.enterprisesurveys.org/

  98. Environmental Performance Index
    https://epi.envirocenter.yale.edu/

  99. Equality of Opportunity Project
    http://www.equality-of-opportunity.org/

  100. Ethnic Power Relations Datasets
    https://icr.ethz.ch/data/epr/

  101. EU Open Data Portal
    https://data.europa.eu/euodp/en/home

  102. Eurobarometer Surveys
    http://ec.europa.eu/COMMFrontOffice/publicopinion/index.cfm/General/index

  103. European Central Bank Statistical Data Warehouse
    http://sdw.ecb.europa.eu/

  104. European Election Studies
    http://europeanelectionstudies.net/

  105. European Quality of Life Survey
    https://www.eurofound.europa.eu/surveys/european-quality-of-life-surveys

  106. European Representative Democracy Data Archive
    https://erdda.org/

  107. European Social Survey
    http://www.europeansocialsurvey.org/

  108. European Values Study
    https://europeanvaluesstudy.eu/

  109. Eurostat
    https://ec.europa.eu/eurostat/web/main/home

  110. EveryPolitician
    https://everypolitician.org/

  111. Executive Order Data
    https://www.archives.gov/federal-register/executive-orders/

  112. Explaining Terrorist and Insurgent Behavior
    https://ic3jm.es/investigacion/proyectos/explaining-terrorist-and-insurgent-behavior/

  113. Federal Election Commission's Campaign Finance Reports and Data
    https://www.fec.gov/data/

  114. Federal Judicial Center Biographical Database
    https://www.fjc.gov/history/judges

  115. Federal Reserve Economic Data
    https://fred.stlouisfed.org/

  116. Fondazione Rodolfo Debenedetti Foundation
    http://www.frdb.org/page/frdb-rodolfo-debenedetti-foundation

  117. Fragile States Index
    https://fragilestatesindex.org/

  118. Freedom House
    https://freedomhouse.org/

  119. General Social Survey
    http://gss.norc.org

  120. German Institute on Radicalization and De-radicalization Studies
    http://www.girds.org/

  121. German Socio-Economic Panel
    https://www.eui.eu/Research/Library/ResearchGuides/Economics/Statistics/DataPortal/GSOEP

  122. GESIS: Data Archive for the Social Sciences
    https://www.gesis.org/en/institute/departments/data-archive-for-the-social-sciences/

  123. Global Conflict Risk Index
    http://conflictrisk.jrc.ec.europa.eu/

  124. Global Elections Database
    http://www.globalelectionsdatabase.com/index.php/index

  125. Global Indicators Database
    https://www.pewresearch.org/global/database/

  126. Global Integrity
    https://www.globalintegrity.org

  127. Global Media Freedom Dataset
    http://faculty.uml.edu/Jenifer_whittenwoodring/MediaFreedomData_000.aspx

  128. Global Parliamentary Report
    http://archive.ipu.org/dem-e/gpr.htm

  129. Global Restrictions on Religion
    http://www.thearda.com/Archive/Files/Descriptions/PGR07_16.asp

  130. Global State of Democracy Indices
    https://www.idea.int/gsod-indices/#/indices/world-map

  131. Global State Revenues and Expenditures
    https://sites.google.com/a/thomaserichter.de/gsre/

  132. Global Terrorism Database
    https://www.start.umd.edu/gtd/

  133. Google Ngram
    https://books.google.com/ngrams

  134. Governance Indicators
    https://www.hertie-school.org/en/governancereport/govreport-indicators/

  135. GovTrack.us
    https://www.govtrack.us/

  136. Greifswald Comparative Politics
    http://comparativepolitics.uni-greifswald.de/index.html

  137. Groningen Growth and Development Centre (GGDC)
    https://www.rug.nl/ggdc/

  138. GROWup - Geographical Research On War, Unified Platform
    http://growup.ethz.ch/

  139. Guide to Data on Developing Countries
    http://ibread.org/bread/data

  140. Guttmacher Institute
    https://www.guttmacher.org/

  141. Harvard Election Data Archive
    http://projects.iq.harvard.edu/eda/home

  142. High Courts Judicial Database
    http://artsandsciences.sc.edu/poli/juri/highcts.htm

  143. Historical Index of Ethnic Fractionalization Dataset
    https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi%3A10.7910%2FDVN%2F4JQRCL&fbclid=IwAR2dJnzSwhplFCKM0-9og3oThIThDUKOKkgUVhxHRLWSDUXn0g3KuK6z1Gg

  144. Historical Reported Voting Rates
    https://www.census.gov/library/visualizations/time-series/demo/voting-historical-time-series.html

  145. Human Rights Data Analysis Group
    https://hrdag.org/

  146. Human Rights Measurement Initiative
    https://humanrightsmeasurement.org/

  147. ICPSR Web Site
    http://www.icpsr.umich.edu/icpsrweb/ICPSR/

  148. Ill-Treatment & Torture (ITT) Data Collection Project
    http://faculty.ucmerced.edu/cconrad2/Academic/ITT_Data_Collection.html

  149. Illinois Data Bank
    https://databank.illinois.edu/

  150. IMF Data Archive
    https://www.imf.org/en/Data

  151. Immigration Policies in Comparison
    http://www.impic-project.eu/

  152. Index of African Governance
    http://mo.ibrahim.foundation/iiag/downloads/

  153. India's Open Government Data Platform
    https://data.gov.in/

  154. Indian States Data
    http://sticerd.lse.ac.uk/eopp/_new/data/indian_data/default.asp

  155. Institute for Democracy and Electoral Assistance Datasets
    https://www.idea.int/data-tools

  156. Institute for Health Metrics
    http://www.healthdata.org/

  157. Institute for Social and Economic Research
    https://www.iser.essex.ac.uk/

  158. Institute of Citizenship Studies (InCite)
    https://www.unige.ch/sciences-societe/incite/welcome-to-the-incite-website/

  159. Institutional Quality Dataset
    https://sites.google.com/site/aljazkuncic/research

  160. Institutions and Elections Project
    https://havardhegre.net/iaep/

  161. Integrated Crisis Early Warning System
    https://www.lockheedmartin.com/en-us/capabilities/research-labs/advanced-technology-labs/icews.html

  162. Inter-Parliamentary Union
    https://www.ipu.org/

  163. International Courts Data
    http://faculty.georgetown.edu/ev42/ICdata.htm

  164. International Labor Organization Statistics
    http://www.ilo.org/ilostat/faces/ilostat-home/home

  165. International Political Economy Data Resource
    https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/X093TV

  166. International Social Survey Programme
    http://www.issp.org/menu-top/home/

  167. International Social Survey Programme
    https://www.gesis.org/issp/home/

  168. IPUMS
    https://ipums.org/

  169. IQSS Dataverse Network
    http://dvn.iq.harvard.edu/dvn/

  170. Israel National Election Studies
    http://www.ines.tau.ac.il/

  171. Issue Correlates of War (ICOW)
    http://www.paulhensel.org/icow.html

  172. Japanese General Social Surveys
    http://jgss.daishodai.ac.jp/english/index.html

  173. Judicial Research Initiative
    http://artsandsciences.sc.edu/poli/juri/

  174. Kaggle Datasets Collection
    https://www.kaggle.com/datasets

  175. KOF Index of Globalization
    https://kof.ethz.ch/en/forecasts-and-indicators/indicators/kof-globalisation-index.html

  176. KOF Swiss Economic Institute
    https://kof.ethz.ch/en/

  177. Konstanz One-Sided Event Dataset
    https://cms.uni-konstanz.de/fileadmin/archive/kosved/polver/gschneider/forschung/kosved.html

  178. Latin American Public Opinion Project
    https://www.vanderbilt.edu/lapop/

  179. Latinobarometro
    http://www.latinobarometro.org/lat.jsp

  180. Legislative Effectiveness Project
    http://www.thelawmakers.org

  181. legislatoR
    https://www.polver.uni-konstanz.de/cdm/research/data/legislator/

  182. LIS Cross-National Data Center
    https://www.lisdatacenter.org/

  183. Longitudinal Internet Studies for the Social sciences
    https://www.lissdata.nl/

  184. Longitudinal Study of American Life
    http://www.lsay.org/index.html

  185. MacroDataGuide
    https://nsd.no/macrodataguide/index.html

  186. Macrohistory Lann Bonn
    http://www.macrohistory.net/

  187. Maddison Project Database
    http://www.ggdc.net/maddison/maddison-project/data.htm

  188. Manifesto Project Database
    https://manifesto-project.wzb.eu/

  189. Martin-Quinn Scores
    https://mqscores.lsa.umich.edu/

  190. Mass Mobilization in Autocracies Database
    https://mmadatabase.org/

  191. Mass Mobilization Project
    https://massmobilization.github.io/

  192. Members of the European Parliament Survey Data
    https://mepsurvey.eu/

  193. Mendeley Data
    https://data.mendeley.com/

  194. Mexican Political Pamphlets, 1808-1832
    https://onesearch.library.utoronto.ca/content/mexican-political-pamphlets-1808-1832

  195. Mexico's National Institute of Statistics and Geography
    http://en.www.inegi.org.mx/default.html

  196. Military Expenditure Database
    https://www.sipri.org/databases/milex

  197. Minorities at Risk Project
    http://www.mar.umd.edu

  198. MIT Election Lab
    https://electionlab.mit.edu/

  199. Most Important Problem Dataset
    http://web.missouri.edu/~williamslaro/mipdata.html

  200. Multiculturalism Policy Index
    https://www.queensu.ca/mcp/

  201. Nat'l Bureau of Econ. Research Datasets
    https://data.nber.org/data/

  202. NatCen Social Research
    http://www.natcen.ac.uk/

  203. NatCen Social Research
    http://natcen.ac.uk/

  204. National Archive of Criminal Justice Data (NACJD)
    https://www.icpsr.umich.edu/icpsrweb/content/NACJD/index.html

  205. National Center for Education Statistics
    https://nces.ed.gov/

  206. National Conference of State Legislatures
    http://www.ncsl.org/

  207. National Elections Across Democracy and Autocracy Dataset
    https://nelda.co/

  208. National Institute of Statistics of Rwanda
    http://www.statistics.gov.rw/

  209. National Study of Learning, Voting, and Engagement (NSLVE)
    https://idhe.tufts.edu/nslve

  210. New Nation Votes, A
    https://elections.lib.tufts.edu/

  211. NewGene
    http://www.newgenesoftware.org/

  212. Nonviolent and Violent Campaigns and Outcomes (NAVCO) Data Project
    https://www.du.edu/korbel/sie/research/chenow_navco_data.html

  213. North Carolina Center for Public Policy Research
    https://nccppr.org/

  214. Northern Ireland Life and Times Survey
    https://www.ark.ac.uk/nilt/

  215. Norwegian Centre for Research Data
    https://nsd.no/nsd/english/

  216. Odum Institute for Research in Social Science
    https://odum.unc.edu/

  217. Open Budget Survey
    https://www.internationalbudget.org/open-budget-survey/

  218. Open Event Data Alliance
    http://openeventdata.org/

  219. Open ICSPR
    https://www.openicpsr.org/openicpsr/

  220. Open Roboethics Institute
    https://www.openroboethics.org/

  221. Open States by the Sunlight Foundation
    https://openstates.org/

  222. Our World in Data
    https://ourworldindata.org/

  223. Oxford COVID-19 Government Response Tracker (OxCGRT)
    https://www.bsg.ox.ac.uk/research/research-projects/oxford-covid-19-government-response-tracker

  224. ParlGov Parliaments and Governments Database
    http://www.parlgov.org/

  225. Party Government Data Set
    https://fsw.vu.nl/en/departments/political-science-and-public-administration/staff/woldendorp/party-government-data-set/index.aspx

  226. Party Systems and Governments Observatory
    https://whogoverns.eu/

  227. Peace Accords Matrix Implementation
    https://peaceaccords.nd.edu

  228. Penn World Table
    http://www.rug.nl/ggdc/productivity/pwt/

  229. Pennsylvania Policy Database
    https://www.cla.temple.edu/pennsylvania-policy-database-project/

  230. Pew Global Attitudes Surveys
    https://www.pewresearch.org/global/datasets/

  231. Pew Research Center Datasets
    https://www.pewresearch.org/download-datasets/

  232. Political Advertising on Google
    https://transparencyreport.google.com/political-ads/home

  233. Political Constraint Index (POLCON) Dataset
    https://mgmt.wharton.upenn.edu/faculty/heniszpolcon/polcondataset/

  234. Political Constraint Index (POLCON) Dataset
    https://mgmt.wharton.upenn.edu/faculty/heniszpolcon/polcondataset/

  235. Political Data Yearbook
    http://www.politicaldatayearbook.com/

  236. Political Institutions and Public Choice Program Data
    http://sites.duke.edu/pipc/data/

  237. Political Terror Scale
    http://www.politicalterrorscale.org

  238. Political TV Ad Archive
    http://politicaladarchive.org

  239. Politics Resources Guide: Find Data
    https://libguides.princeton.edu/politics/data

  240. Polity Project: Political Regime Characteristics and Transitions
    http://www.systemicpeace.org/polity/polity4.htm

  241. PollBase
    https://www.markpack.org.uk/opinion-polls/

  242. Polling the Nations
    http://www.orspub.com/

  243. Portal of Public Use Datasets on Sub-Saharan Africa
    https://www.nber.org/africa/

  244. Presidency Research
    http://presdata.tamu.edu/

  245. President in Congress, The
    https://sites.google.com/ucsd.edu/president-in-congress/

  246. Presidential Power Scores
    http://presidential-power.com/?page_id=2148

  247. Presidential Research Group Data Sites
    http://cstl-cla.semo.edu/rdrenka/PRG/PRG_presidencydata.asp

  248. Princeton Gerrymandering Project
    http://gerrymander.princeton.edu/

  249. Project on Democratic Accountability and Citizen-Politician Linkages around the World
    https://sites.duke.edu/democracylinkage/

  250. Public Religion Research Institute
    https://www.prri.org/

  251. Qualitative Data Repository
    https://qdr.syr.edu/

  252. Quality of Government Institute
    https://qog.pol.gu.se/

  253. Quandl
    https://www.quandl.com/

  254. Real Time Event Data / Phoenix
    http://eventdata.utdallas.edu/

  255. Reddit Datasets
    https://www.reddit.com/r/datasets

  256. Religion and State Project Constitutions Dataset
    http://www.thearda.com/archive/files/Descriptions/RASCONS.asp

  257. Religion Data Archives
    http://www.thearda.com/Archive/browse.asp

  258. Religious Data: Association of Religion Data Archives
    http://www.thearda.com/Archive/browse.asp

  259. Rising Powers Diplomatic Network
    https://doi.org/10.7910/DVN/5FISNQ

  260. Roper Center
    https://ropercenter.cornell.edu/

  261. School Finance Indicators Database
    http://schoolfinancedata.org/

  262. Sexual Violence in Armed Conflict
    http://www.sexualviolencedata.org

  263. Sie Cheou-Kang Center for International Security & Diplomacy
    https://www.du.edu/korbel/sie/index.html

  264. SIPRI Databases on Global Security
    https://www.sipri.org/databases

  265. Social Feed Manager
    https://gwu-libraries.github.io/sfm-ui/

  266. Social Policy Indicators (SPIN)
    https://www.sofi.su.se/spin/

  267. South African Data Archive
    http://sada.nrf.ac.za/

  268. State Antiquity Index
    https://www.brown.edu/Departments/Economics/Faculty/Louis_Putterman/antiquity index.htm

  269. State Data and Policy Actions to Address Coronavirus
    https://www.kff.org/health-costs/issue-brief/state-data-and-policy-actions-to-address-coronavirus

  270. State Networks Dataset
    https://ippsr.msu.edu/public-policy/state-networks

  271. State of First Amendment Surveys
    http://www.firstamendmentcenter.org/sofa/

  272. State Policy Index
    http://www.statepolicyindex.com/

  273. StateMaster.com
    http://www.statemaster.com/index.php

  274. Statistics South Africa
    http://www.statssa.gov.za/

  275. Supreme Court Citation Network Data
    http://jhfowler.ucsd.edu/judicial.htm

  276. Supreme Court Database
    http://scdb.wustl.edu/

  277. Survey Documentation and Analysis
    http://sda.berkeley.edu/index.html

  278. Survey of Health, Ageing and Retirement in Europe
    http://www.share-project.org/home0.html

  279. Swedish National Data Service
    https://snd.gu.se/en

  280. Swedish National Election Studies
    https://valforskning.pol.gu.se/english

  281. Taiwan Election & Democratization Study
    http://teds.nccu.edu.tw/main.php

  282. TERRIER
    http://terrierdata.org/

  283. Terrorism in W. Europe: Events Data
    http://folk.uib.no/sspje/tweed.htm

  284. Texas Politics Project, The
    https://texaspolitics.utexas.edu/

  285. Time-Sharing Experiments for the Social Sciences
    https://tessexperiments.org

  286. TRAC Immigration Tool
    https://trac.syr.edu/phptools/reports/reports.php?layer=immigration&report_type=tool

  287. Transitional Justice Research Collaborative
    https://transitionaljusticedata.com/

  288. Transparency International
    https://www.transparency.org/research

  289. Trivedi Centre for Political Data
    https://tcpd.ashoka.edu.in/

  290. U.S. Elections Project
    http://www.electproject.org/

  291. U.S. Foreign Aid Explorer
    https://explorer.usaid.gov/

  292. U.S. House Election Results Archive
    https://history.house.gov/Institution/Election-Statistics/Election-Statistics/

  293. UC Data
    http://ucdata.berkeley.edu/

  294. UCDP/PRIO Armed Conflict Dataset
    https://www.prio.org/Data/Armed-Conflict/UCDP-PRIO/

  295. UK Data Service
    https://www.ukdataservice.ac.uk/

  296. UK Household Longitudinal Study
    https://www.understandingsociety.ac.uk/

  297. UN Comtrade Database
    https://comtrade.un.org/

  298. United Nations Statistics Division
    https://unstats.un.org/home/

  299. United Nations University World Institute for Development Economics Research (UNU-WIDER)
    https://www.wider.unu.edu/

  300. United States Election Project
    http://www.electproject.org/home

  301. Uppsala Conflict Data Program
    https://ucdp.uu.se/

  302. US Policy Agendas Project
    https://www.comparativeagendas.net/us

  303. US Presidential Elections Data
    https://github.com/zonination/election-history

  304. V-Dem (Varieties of Democracy)
    https://www.v-dem.net/en/

  305. Vetoes by U.S. Presidents, 1789-present
    https://www.senate.gov/reference/Legislation/Vetoes/vetoCounts.htm

  306. Vital Statistics on the U.S. Congress
    https://www.brookings.edu/multi-chapter-report/vital-statistics-on-congress/

  307. Voter Turnout Database
    https://www.idea.int/data-tools/data/voter-turnout

  308. Voteview (UCLA)
    https://voteview.com/

  309. Voteview Legacy Website
    http://voteview.org/

  310. VoteWatch Europe
    https://www.votewatch.eu/

  311. Voting Technology Project Data
    http://www.votingtechnologyproject.org/data

  312. Wesleyan Media Project
    http://mediaproject.wesleyan.edu/

  313. Who Governs?
    https://whogoverns.eu/

  314. World Bank Open Data
    https://data.worldbank.org/

  315. World Bank's Data Catalog
    https://datacatalog.worldbank.org/

  316. World Database of Happiness
    https://worlddatabaseofhappiness.eur.nl/

  317. World Economics and Politics Dataverse
    https://ncgg.princeton.edu/wep/dataverse.html

  318. World Inequality Database
    https://wid.world/

  319. World Integrated Trade Solution
    https://wits.worldbank.org/Default.aspx?lang=en

  320. World Justice Project
    https://worldjusticeproject.org/

  321. World Press Freedom Index
    https://rsf.org/en/ranking_table

  322. World Treaty Index (WTI)
    http://www.worldtreatyindex.moonfruit.com/

  323. World Values Survey
    http://www.worldvaluessurvey.org/wvs.jsp

  324. World Values Survey
    http://www.worldvaluessurvey.org/wvs.jsp

  325. Worldwide Governance Indicators
    https://datacatalog.worldbank.org/dataset/worldwide-governance-indicators

  326. xSub / cross-sub.org
    http://cross-sub.org/

  327. Zenobo - Open Access Data Repository
    https://zenodo.org/