| Jerry Carl (R) source | Incumbent | U.S. House Alabama District 1 | Primary, General | Won general |
| Barry Moore (R) source | Incumbent | U.S. House Alabama District 2 | Primary, General | Won general |
| Mike Rogers (R) source | Incumbent | U.S. House Alabama District 3 | Primary, General | Won general |
| Robert Aderholt (R) source | Incumbent | U.S. House Alabama District 4 | Primary, General | Won general |
| Dale Strong (R) source | Open seat | U.S. House Alabama District 5 | General | Won general |
| Gary Palmer (R) source | Incumbent | U.S. House Alabama District 6 | Primary, General | Won general |
| Sarah Palin (R) source | Open seat | U.S. House Alaska At-large District (special) | Primary, General | Lost general |
| Sarah Palin (R) source | Open seat | U.S. House Alaska At-large District | Primary, General | Won primary |
| David Schweikert (R) source | Incumbent | U.S. House Arizona District 1 | Primary, General | Won primary |
| Eli Crane (R) source | Challenger | U.S. House Arizona District 2 | Primary, General | Won primary |
| Kelly Cooper (R) source | Challenger | U.S. House Arizona District 4 | General | Won primary |
| Debbie Lesko (R) source | Incumbent | U.S. House Arizona District 8 | Primary, General | Won general |
| Paul Gosar (R) source | Incumbent | U.S. House Arizona District 9 | Primary, General | Won general |
| Rick Crawford (R) source | Incumbent | U.S. House Arkansas District 1 | Primary, General | Won general |
| Bruce Westerman (R) source | Incumbent | U.S. House Arkansas District 4 | Primary, General | Won general |
| Doug LaMalfa (R) source | Incumbent | U.S. House California District 1 | Primary, General | Won general |
| Kevin McCarthy (R) source | Incumbent | U.S. House California District 20 | Primary, General | Won general |
| Connie Conway (R) source | Open seat | U.S. House California District 22 (special) | General | Won general |
| Jay Obernolte (R) source | Incumbent | U.S. House California District 23 | Primary, General | Won primary |
| Kevin Kiley (R) source | Open seat | U.S. House California District 3 | Primary, General | Won primary |
| Ken Calvert (R) source | Incumbent | U.S. House California District 41 | Primary, General | Won primary |
| Darrell Issa (R) source | Incumbent | U.S. House California District 48 | Primary, General | Won general |
| Tom McClintock (R) source | Incumbent | U.S. House California District 5 | Primary, General | Won general |
| Lauren Boebert (R) source | Incumbent | U.S. House Colorado District 3 | Primary, General | Won primary |
| Matt Gaetz (R) source | Incumbent | U.S. House Florida District 1 | Primary, General | Won general |
| Gus M. Bilirakis (R) source | Incumbent | U.S. House Florida District 12 | Primary, General | Won general |
| Anna Paulina Luna (R) source | Open seat | U.S. House Florida District 13 | Primary, General | Won general |
| Vern Buchanan (R) source | Incumbent | U.S. House Florida District 16 | Primary, General | Won general |
| Greg Steube (R) source | Incumbent | U.S. House Florida District 17 | Primary, General | Won general |
| Scott Franklin (R) source | Incumbent | U.S. House Florida District 18 | Primary, General | Won general |
| Byron Donalds (R) source | Incumbent | U.S. House Florida District 19 | Primary, General | Won general |
| Neal Dunn (R) source | Incumbent | U.S. House Florida District 2 | Primary, General | Won general |
| Brian Mast (R) source | Incumbent | U.S. House Florida District 21 | Primary, General | Won general |
| Mario Diaz-Balart (R) source | Incumbent | U.S. House Florida District 26 | Primary, General | Won general |
| Carlos Gimenez (R) source | Incumbent | U.S. House Florida District 28 | Primary, General | Won general |
| Kat Cammack (R) source | Incumbent | U.S. House Florida District 3 | Primary, General | Won general |
| Aaron Bean (R) source | Open seat | U.S. House Florida District 4 | General | Won general |
| John Rutherford (R) source | Incumbent | U.S. House Florida District 5 | Primary, General | Won general |
| Michael Waltz (R) source | Incumbent | U.S. House Florida District 6 | Primary, General | Won general |
| Cory Mills (R) source | Challenger | U.S. House Florida District 7 | General | Won general |
| Earl Carter (R) source | Incumbent | U.S. House Georgia District 1 | Primary, General | Won general |
| Mike Collins (R) source | Open seat | U.S. House Georgia District 10 | General | Won general |
| Vernon Jones (R) source | Open seat | U.S. House Georgia District 10 | Primary, Primary Runoff | Lost primary runoff |
| Barry Loudermilk (R) source | Incumbent | U.S. House Georgia District 11 | Primary, General | Won general |
| Rick Allen (R) source | Incumbent | U.S. House Georgia District 12 | Primary, General | Won general |
| Marjorie Taylor Greene (R) source | Incumbent | U.S. House Georgia District 14 | Primary, General | Won general |
| Jake Evans (R) source | Open seat | U.S. House Georgia District 6 | Primary, Primary Runoff | Lost primary runoff |
| Rich McCormick (R) source | Open seat | U.S. House Georgia District 6 | General | Won general |
| Andrew Clyde (R) source | Incumbent | U.S. House Georgia District 9 | Primary, General | Won general |
| Russ Fulcher (R) source | Incumbent | U.S. House Idaho District 1 | Primary, General | Won general |
| Mike Bost (R) source | Incumbent | U.S. House Illinois District 12 | Primary, General | Won general |
| Mary Miller (R) source 1 source 2 | Incumbent | U.S. House Illinois District 15 | Primary, General | Won general |
| Darin LaHood (R) source | Incumbent | U.S. House Illinois District 16 | Primary, General | Won general |
| Jackie Walorski (R) source | Incumbent | U.S. House Indiana District 2 | Primary | Not on the ballot general |
| Jim Banks (R) source | Incumbent | U.S. House Indiana District 3 | Primary, General | Won general |
| Jim Baird (R) source | Incumbent | U.S. House Indiana District 4 | Primary, General | Won general |
| Victoria Spartz (R) source | Incumbent | U.S. House Indiana District 5 | Primary, General | Won general |
| Greg Pence (R) source | Incumbent | U.S. House Indiana District 6 | Primary, General | Won general |
| Larry Bucshon (R) source | Incumbent | U.S. House Indiana District 8 | Primary, General | Won general |
| Erin Houchin (R) source | Open seat | U.S. House Indiana District 9 | General | Won general |
| Ashley Hinson (R) source | Incumbent | U.S. House Iowa District 2 | Primary, General | Won general |
| Zach Nunn (R) source | Challenger | U.S. House Iowa District 3 | Primary, General | Won primary |
| Randy Feenstra (R) source | Incumbent | U.S. House Iowa District 4 | Primary, General | Won general |
| Tracey Mann (R) source | Incumbent | U.S. House Kansas District 1 | Primary, General | Won general |
| James Comer Jr. (R) source | Incumbent | U.S. House Kentucky District 1 | Primary, General | Won general |
| Brett Guthrie (R) source | Incumbent | U.S. House Kentucky District 2 | Primary, General | Won general |
| Thomas Massie (R) source | Incumbent | U.S. House Kentucky District 4 | Primary, General | Won general |
| Hal Rogers (R) source | Incumbent | U.S. House Kentucky District 5 | Primary, General | Won general |
| Andy Barr (R) source | Incumbent | U.S. House Kentucky District 6 | Primary, General | Won general |
| Steve Scalise (R) source | Incumbent | U.S. House Louisiana District 1 | Primary | Won primary |
| Clay Higgins (R) source | Incumbent | U.S. House Louisiana District 3 | Primary | Won primary |
| Mike Johnson (R) source | Incumbent | U.S. House Louisiana District 4 | Primary | Won primary |
| John James (R) source | Open seat | U.S. House Michigan District 10 | Primary, General | Won primary |
| John Moolenaar (R) source | Incumbent | U.S. House Michigan District 2 | Primary, General | Won general |
| John Gibbs (R) source | Challenger | U.S. House Michigan District 3 | Primary, General | Won primary |
| Bill Huizenga (R) source | Incumbent | U.S. House Michigan District 4 | Primary, General | Won general |
| Steve Carra (R) source | Challenger | U.S. House Michigan District 4 | Primary | Not on the ballot primary |
| Tim Walberg (R) source | Incumbent | U.S. House Michigan District 5 | Primary, General | Won general |
| Lisa McClain (R) source | Incumbent | U.S. House Michigan District 9 | Primary, General | Won general |
| Trent Kelly (R) source | Incumbent | U.S. House Mississippi District 1 | Primary, General | Won general |
| Mike Ezell (R) source | Challenger | U.S. House Mississippi District 4 | General | Won general |
| Blaine Luetkemeyer (R) source | Incumbent | U.S. House Missouri District 3 | Primary, General | Won general |
| Mark Alford (R) source | Open seat | U.S. House Missouri District 4 | General | Won general |
| Sam Graves (R) source | Incumbent | U.S. House Missouri District 6 | Primary, General | Won general |
| Eric Burlison (R) source | Open seat | U.S. House Missouri District 7 | General | Won general |
| Jason Smith (R) source | Incumbent | U.S. House Missouri District 8 | Primary, General | Won general |
| Ryan Zinke (R) source | Open seat | U.S. House Montana District 1 | Primary, General | Won primary |
| Matt Rosendale (R) source | Incumbent | U.S. House Montana District 2 | Primary, General | Won general |
| Adrian Smith (R) source | Incumbent | U.S. House Nebraska District 3 | Primary, General | Won general |
| Karoline Leavitt (R) source | Challenger | U.S. House New Hampshire District 1 | General | Lost general |
| Bob Burns (R) source | Challenger | U.S. House New Hampshire District 2 | General | Won primary |
| Nicole Malliotakis (R) source | Incumbent | U.S. House New York District 11 | Primary, General | Won general |
| Elise Stefanik (R) source | Incumbent | U.S. House New York District 21 | Primary, General | Won general |
| Nicholas A. Langworthy (R) source | Challenger | U.S. House New York District 23 | General | Won general |
| Claudia Tenney (R) source | Incumbent | U.S. House New York District 24 | Primary, General | Won general |
| Sandy Smith (R) source | Open seat | U.S. House North Carolina District 1 | General | Won primary |
| Patrick T. McHenry (R) source | Incumbent | U.S. House North Carolina District 10 | Primary, General | Won general |
| Madison Cawthorn (R) source | Incumbent | U.S. House North Carolina District 11 | Primary | Lost primary |
| Bo Hines (R) source | Open seat | U.S. House North Carolina District 13 | Primary, General | Lost general |
| Gregory Murphy (R) source | Incumbent | U.S. House North Carolina District 3 | Primary, General | Won general |
| Virginia Foxx (R) source | Incumbent | U.S. House North Carolina District 5 | Primary, General | Won general |
| David Rouzer (R) source | Incumbent | U.S. House North Carolina District 7 | Primary, General | Won general |
| Dan Bishop (R) source | Incumbent | U.S. House North Carolina District 8 | Primary, General | Won general |
| Richard Hudson (R) source | Incumbent | U.S. House North Carolina District 9 | Primary, General | Won general |
| Kelly Armstrong (R) source | Incumbent | U.S. House North Dakota At-large District | Primary, General | Won general |
| Steve Chabot (R) source | Incumbent | U.S. House Ohio District 1 | Primary, General | Lost general |
| Michael Turner (R) source | Incumbent | U.S. House Ohio District 10 | Primary, General | Won general |
| Troy Balderson (R) source | Incumbent | U.S. House Ohio District 12 | Primary, General | Won general |
| Madison Gesiotto Gilbert (R) source | Open seat | U.S. House Ohio District 13 | Primary, General | Lost general |
| Mike Carey (R) source | Incumbent | U.S. House Ohio District 15 | Primary, General | Won general |
| Brad Wenstrup (R) source | Incumbent | U.S. House Ohio District 2 | Primary, General | Won general |
| Jim Jordan (R) source | Incumbent | U.S. House Ohio District 4 | Primary, General | Won general |
| Bob Latta (R) source | Incumbent | U.S. House Ohio District 5 | Primary, General | Won general |
| Bill Johnson (R) source | Incumbent | U.S. House Ohio District 6 | Primary, General | Won general |
| Max Miller (R) source | Challenger | U.S. House Ohio District 7 | Primary, General | Won general |
| Warren Davidson (R) source | Incumbent | U.S. House Ohio District 8 | Primary, General | Won general |
| J.R. Majewski (R) source | Challenger | U.S. House Ohio District 9 | Primary, General | Lost general |
| Kevin Hern (R) source | Incumbent | U.S. House Oklahoma District 1 | Primary, General | Won general |
| Josh Brecheen (R) source | Open seat | U.S. House Oklahoma District 2 | General | Won general |
| Frank Lucas (R) source | Incumbent | U.S. House Oklahoma District 3 | Primary, General | Won general |
| Tom Cole (R) source | Incumbent | U.S. House Oklahoma District 4 | Primary, General | Won general |
| Scott Perry (R) source | Incumbent | U.S. House Pennsylvania District 10 | Primary, General | Won general |
| Lloyd Smucker (R) source | Incumbent | U.S. House Pennsylvania District 11 | Primary, General | Won general |
| Guy Reschenthaler (R) source | Incumbent | U.S. House Pennsylvania District 14 | Primary, General | Won general |
| Glenn Thompson (R) source | Incumbent | U.S. House Pennsylvania District 15 | General | Won general |
| Mike Kelly (R) source | Incumbent | U.S. House Pennsylvania District 16 | Primary, General | Won general |
| Jim Bognet (R) source | Challenger | U.S. House Pennsylvania District 8 | Primary, General | Won primary |
| Dan Meuser (R) source | Incumbent | U.S. House Pennsylvania District 9 | General | Won general |
| Katie Arrington (R) source | Challenger | U.S. House South Carolina District 1 | Primary | Lost primary |
| Joe Wilson (R) source | Incumbent | U.S. House South Carolina District 2 | Primary, General | Won general |
| Jeff Duncan (R) source | Incumbent | U.S. House South Carolina District 3 | Primary, General | Won general |
| William Timmons (R) source | Incumbent | U.S. House South Carolina District 4 | Primary, General | Won general |
| Ralph Norman (R) source | Incumbent | U.S. House South Carolina District 5 | Primary, General | Won general |
| Russell Fry (R) source 1 source 2 | Challenger | U.S. House South Carolina District 7 | Primary, General | Won general |
| Diana Harshbarger (R) source | Incumbent | U.S. House Tennessee District 1 | Primary, General | Won general |
| Charles J. Fleischmann (R) source | Incumbent | U.S. House Tennessee District 3 | Primary, General | Won general |
| Andy Ogles (R) source | Challenger | U.S. House Tennessee District 5 | General | Won general |
| Morgan Ortagus (R) source | Challenger | U.S. House Tennessee District 5 | Primary | Not on the ballot primary |
| Mark Green (R) source | Incumbent | U.S. House Tennessee District 7 | Primary, General | Won general |
| Nathaniel Moran (R) source | Open seat | U.S. House Texas District 1 | General | Won general |
| Michael McCaul (R) source | Incumbent | U.S. House Texas District 10 | Primary, General | Won general |
| August Pfluger (R) source | Incumbent | U.S. House Texas District 11 | Primary, General | Won general |
| Kay Granger (R) source | Incumbent | U.S. House Texas District 12 | Primary, General | Won general |
| Ronny L. Jackson (R) source | Incumbent | U.S. House Texas District 13 | Primary, General | Won general |
| Randy Weber (R) source | Incumbent | U.S. House Texas District 14 | Primary, General | Won general |
| Monica De La Cruz (R) source | Open seat | U.S. House Texas District 15 | Primary, General | Won primary |
| Jodey Arrington (R) source | Incumbent | U.S. House Texas District 19 | Primary, General | Won general |
| Troy Nehls (R) source | Incumbent | U.S. House Texas District 22 | Primary, General | Won general |
| Beth Van Duyne (R) source | Incumbent | U.S. House Texas District 24 | Primary, General | Won general |
| Roger Williams (R) source | Incumbent | U.S. House Texas District 25 | Primary, General | Won general |
| Michael Cloud (R) source | Incumbent | U.S. House Texas District 27 | Primary, General | Won general |
| Keith Self (R) source | Challenger | U.S. House Texas District 3 | General | Won general |
| John Carter (R) source | Incumbent | U.S. House Texas District 31 | Primary, General | Won general |
| Brian Babin (R) source | Incumbent | U.S. House Texas District 36 | Primary, General | Won general |
| Wesley Hunt (R) source | Open seat | U.S. House Texas District 38 | Primary, General | Won general |
| Pat Fallon (R) source | Incumbent | U.S. House Texas District 4 | Primary, General | Won general |
| Lance Gooden (R) source | Incumbent | U.S. House Texas District 5 | Primary, General | Won general |
| Jake Ellzey (R) source | Incumbent | U.S. House Texas District 6 | Primary, General | Won general |
| Morgan Luttrell (R) source | Open seat | U.S. House Texas District 8 | General | Won general |
| Chris Stewart (R) source | Incumbent | U.S. House Utah District 2 | Primary, General | Won general |
| Burgess Owens (R) source | Incumbent | U.S. House Utah District 4 | Primary, General | Won general |
| Robert J. Wittman (R) source | Incumbent | U.S. House Virginia District 1 | Primary, General | Won general |
| Bob Good (R) source | Incumbent | U.S. House Virginia District 5 | Convention, General | Won general |
| Benjamin Lee Cline (R) source | Incumbent | U.S. House Virginia District 6 | Primary, General | Won general |
| Yesli Vega (R) source | Challenger | U.S. House Virginia District 7 | General | Lost general |
| H. Morgan Griffith (R) source | Incumbent | U.S. House Virginia District 9 | Primary, General | Won general |
| Joe Kent (R) source | Challenger | U.S. House Washington District 3 | Primary, General | Won primary |
| Loren Culp (R) source | Challenger | U.S. House Washington District 4 | Primary | Lost primary |
| Carol Miller (R) source | Incumbent | U.S. House West Virginia District 1 | Primary, General | Won general |
| Alexander Mooney (R) source 1 source 2 | Incumbent | U.S. House West Virginia District 2 | Primary, General | Won general |
| Derrick Van Orden (R) source | Open seat | U.S. House Wisconsin District 3 | Primary, General | Won primary |
| Harriet Hageman (R) source | Challenger | U.S. House Wyoming At-large District | Primary, General | Won general |