10608 committees
| Name | Candidate | Type | Party | City | First Registered |
|---|---|---|---|---|---|
| Jon Olefson for P&Z | Jonathan D Olefson | Candidate Committee | Republican | Westport | Aug. 8, 2017 |
| Jon Carlo Gallup | Jon Carlo Gallup | Candidate Exemption Committee | Democrat | Stamford | June 4, 2010 |
| Johnstone for the 117th | Steven J Johnstone | Candidate Committee | Republican | West Haven | Jan. 13, 2026 |
| Johnstone for State Rep | Steven J Johnstone | Candidate Committee | Republican | West Haven | Feb. 25, 2024 |
| JOHNSTONE 2024 | Steven J Johnstone | Candidate Committee | Republican | West Haven | April 5, 2024 |
| Johnson For Senate 08 | Milton L Johnson | Candidate Committee | Republican | Bridgeport | May 23, 2008 |
| Johnson For Senate | Milton L Johnson | Candidate Committee | Republican | Bridgeport | May 12, 2010 |
| Johnson 2016 | Myron P Johnson | Candidate Committee | Democrat | Hartford | May 16, 2016 |
| Johnny D Carrier | Johnny D Carrier | Candidate Exemption Committee | Republican | Farmington | May 31, 2024 |
| John Weinstein | John Weinstein | Candidate Exemption Committee | Democrat | Cheshire | July 31, 2017 |
| John W Parfitt, Jr | John W Parfitt | Candidate Exemption Committee | Republican | Groton | May 28, 2010 |
| John W Orfitelli | john W orfitelli | Candidate Exemption Committee | Republican | Manchester | Aug. 8, 2017 |
| John W Brockelman | John W Brockelman | Candidate Exemption Committee | Republican | Farmington | Aug. 26, 2020 |
| John T Shaban | John T Shaban | Candidate Exemption Committee | Republican | Redding | March 31, 2022 |
| John T Michels | John T Michels | Candidate Exemption Committee | Democrat | Griswold | May 26, 2016 |
| John T Finkle, III | John T Finkle | Candidate Exemption Committee | Republican | East Haven | July 29, 2017 |
| John Szewczyk 2012 | John Szewczyk | Candidate Committee | Republican | Durham | Feb. 22, 2012 |
| John Szewczyk 2010 | John Szewczyk | Exploratory Committee | Republican | Durham | Sept. 14, 2009 |
| John Stripp 2008 | John E. Stripp | Candidate Committee | Republican | Weston | March 5, 2008 |
| John Slater For State Representative | John E Slater | Candidate Committee | Republican | Trumbull | March 9, 2016 |
| John Scott 2018 | John F Scott | Candidate Committee | Republican | Mystic | Dec. 1, 2017 |
| John Scott 2016 | John F Scott | Candidate Committee | Republican | Mystic | Oct. 5, 2015 |
| John Scott 2014 | John F. Scott | Candidate Committee | Republican | Mystic | April 17, 2014 |
| John S Backer | John S Backer | Candidate Exemption Committee | Republican | Manchester | July 27, 2017 |
| John Ryan 2006 | John E. Ryan | Candidate Committee | Republican | East Hartford | June 2, 2006 |
| John Ryan - State Rep | — | Candidate Committee | — | Greenwich | July 7, 2005 |
| John Rigby For 63Rd | John B Rigby | Candidate Committee | Republican | Winsted | May 21, 2008 |
| John R. Delmhorst | John R. Delmhorst | Candidate Exemption Committee | Republican | Stonington | July 28, 2017 |
| John Pelkey for South Windsor | John P Pelkey | Candidate Committee | Democrat | South Windsor | March 5, 2018 |
| John Pavia | John P. Pavia | Exploratory Committee | Republican | Hartford | Jan. 26, 2010 |
| John P Merz | John P Merz | Candidate Exemption Committee | Democrat | Simsbury | July 25, 2017 |
| John P May | John P May | Candidate Exemption Committee | Green Party | Clinton | Sept. 3, 2020 |
| John P Kilian | John P Kilian | Candidate Exemption Committee | Connecticut for Lieberman Party | Middletown | Sept. 2, 2010 |
| John P Kardaras | John P Kardaras | Candidate Exemption Committee | Democrat | Cheshire | Aug. 2, 2017 |
| John Ostaszewski | John Ostaszewski | Candidate Exemption Committee | Democrat | Monroe | July 31, 2017 |
| John Olin for the 34th | John C Olin | Candidate Committee | Democrat | East Haddam | May 4, 2022 |
| John N Pavia | John N Pavia | Candidate Exemption Committee | Republican | Bridgeport | May 30, 2008 |
| John Murphy 2012 | John P. Murphy | Candidate Committee | Democrat | Coventry | April 3, 2012 |
| John Morris For The 64th | John M. Morris | Candidate Committee | Republican | Salisbury | June 20, 2000 |
| John Morris for the 64th | John M. Morris | Candidate Committee | Republican | Torrington | Feb. 13, 2002 |
| John M Traceski | John M Traceski | Candidate Exemption Committee | Unaffiliated | Somers | Aug. 18, 2008 |
| John M Phillips | John M Phillips | Candidate Exemption Committee | Democrat | Hartford | April 4, 2012 |
| John Leahy 2004 | John T. Leahy | Candidate Committee | Republican | Niantic | Jan. 29, 2004 |
| John L Ponzio | John L Ponzio | Candidate Exemption Committee | Republican | Trumbull | July 26, 2017 |
| John J. Sullivan's Voters Organized to Elect PAC | John J. Sullivan | Political Action Committee | — | Hamden | April 5, 2001 |
| John J. Sullivan's Voters Organized To Elect PAC | Michael R. Guay | Political Action Committee | — | Hamden | April 5, 2001 |
| John J. Sullivan's VOTEPAC | — | Political Action Committee | — | Hamden | June 3, 2003 |
| John J Morrison | John J Morrison | Candidate Exemption Committee | Democrat | Hamden | June 7, 2010 |
| John J McGrath, Jr | John J McGrath | Candidate Exemption Committee | Democrat | Windham | Feb. 20, 2018 |
| John J Flynn | John J Flynn | Candidate Exemption Committee | Republican | Norwalk | June 24, 2020 |