# List of United States representatives who switched parties

The following are members of the United States House of Representatives who switched parties while serving in Congress.
| Representative | State | District | Date | Congress | Old party | New party | Notes |
| Galusha A. Grow | Pennsylvania | 14th | February–June 1856 | 34th | Democratic | Republican | He switched parties in the wake of President Pierce's signing of the Kansas–Nebraska Act. |
| John J. O'Connor | New York | 16th | October 24, 1938 | 75th | Democratic | Republican | Lost Democratic renomination, defeated for re-election as a Republican. |
| Franklin D. Roosevelt Jr. | New York | 20th | January 3, 1951 | 82nd | Liberal | Democratic | Roosevelt was re-elected as a Democrat. |
| Albert Watson | South Carolina | 2nd | February–June 1965 | 90th | Democratic | Republican | Watson resigned his seat as a Democrat on February 1, 1965, and then won a special election as a Republican on June 15, 1965. |
| Ogden Reid | New York | 26th | March 22, 1972 | 92nd | Republican | Democratic | |
| Donald W. Riegle | Michigan | 7th | February 27, 1973 | 93rd | Republican | Democratic | |
| John Jarman | Oklahoma | 5th | January 24, 1975 | 94th | Democratic | Republican | |
| Eugene Atkinson | Pennsylvania | 25th | October 14, 1981 | 97th | Democratic | Republican | |
| Bob Stump | Arizona | 3rd | July 1982 | 97th | Democratic | Republican | |
| Phil Gramm | Texas | 6th | January/February 1983 | 98th | Democratic | Republican | Gramm resigned his seat as a Democrat on January 5, 1983, and then won a special election as a Republican on February 12, 1983. |
| Andy Ireland | Florida | 10th | July 5, 1984 | 98th | Democratic | Republican | |
| William Carney | New York | 1st | October 7, 1985 | 99th | Conservative | Republican | |
| James W. Grant | Florida | 2nd | February 21, 1989 | 101st | Democratic | Republican | |
| Tommy F. Robinson | Arkansas | 2nd | July 28, 1989 | 101st | Democratic | Republican | |
| Nathan Deal | Georgia | 9th | April 10, 1995 | 104th | Democratic | Republican | |
| Greg Laughlin | Texas | 14th | June 26, 1995 | 104th | Democratic | Republican | |
| Billy Tauzin | Louisiana | 3rd | August 8, 1995 | 104th | Democratic | Republican | |
| Michael Parker | Mississippi | 4th | November 10, 1995 | 104th | Democratic | Republican | |
| Jo Ann Emerson | Missouri | 8th | January 3, 1997 | 105th | Republican | Independent | Emerson was re-elected to a full term as an independent after running under that designation to comply with Missouri's electoral law. |
| Jo Ann Emerson | Missouri | 8th | January 8, 1997 | 105th | Independent | Republican | |
| Michael Forbes | New York | 1st | July 17, 1999 | 106th | Republican | Democratic | |
| Virgil Goode | Virginia | 5th | January 27, 2000 | 106th | Democratic | Independent | |
| Matthew G. Martinez | California | 31st | July 27, 2000 | 106th | Democratic | Republican | |
| Virgil Goode | Virginia | 5th | August 1, 2002 | 107th | Independent | Republican | |
| Ralph Hall | Texas | 4th | January 5, 2004 | 108th | Democratic | Republican | |
| Rodney Alexander | Louisiana | 5th | August 9, 2004 | 108th | Democratic | Republican | |
| Parker Griffith | Alabama | 5th | December 22, 2009 | 111th | Democratic | Republican | |
| Justin Amash | Michigan | 3rd | July 4, 2019 | 116th | Republican | Independent | Amash became an independent on July 4, 2019, and then a Libertarian on April 29, 2020. |
| Justin Amash | Michigan | 3rd | April 29, 2020 | 116th | Independent | Libertarian | Amash became an independent on July 4, 2019, and then a Libertarian on April 29, 2020. |
| Jeff Van Drew | New Jersey | 2nd | December 19, 2019 | 116th | Democratic | Republican | Van Drew switched parties in the wake of the first impeachment of Donald Trump, which he opposed. |
| Paul Mitchell | Michigan | 10th | December 14, 2020 | 116th | Republican | Independent | |