- Henry C. "Hank" Johnson Representative from GA, Democratic
- Mike Johnson Representative from LA, Republican
- Jim Jordan Representative from OH, Republican
- David P. Joyce Representative from OH, Republican
- John Joyce Representative from PA, Republican
- Sydney Kamlager-Dove Representative from CA, Democratic
- Marcy Kaptur Representative from OH, Democratic
- Thomas H. Kean Representative from NJ, Republican
- William R. Keating Representative from MA, Democratic
- Mike Kelly Representative from PA, Republican
- Robin L. Kelly Representative from IL, Democratic
- Trent Kelly Representative from MS, Republican
- Timothy M. Kennedy Representative from NY, Democratic
- Ro Khanna Representative from CA, Democratic
- Jennifer A. Kiggans Representative from VA, Republican
- Daniel T. Kildee Representative from MI, Democratic
- Kevin Kiley Representative from CA, Independent
- Derek Kilmer Representative from WA, Democratic
- Young Kim Representative from CA, Republican
- Raja Krishnamoorthi Representative from IL, Democratic