- Grace Meng Representative from NY, Democratic
- Mark B. Messmer Representative from IN, Republican
- Daniel Meuser Representative from PA, Republican
- Kweisi Mfume Representative from MD, Democratic
- Carol D. Miller Representative from WV, Republican
- Mary E. Miller Representative from IL, Republican
- Max L. Miller Representative from OH, Republican
- Mariannette Miller-Meeks Representative from IA, Republican
- Cory Mills Representative from FL, Republican
- Dave Min Representative from CA, Democratic
- John R. Moolenaar Representative from MI, Republican
- Barry Moore Representative from AL, Republican
- Blake D. Moore Representative from UT, Republican
- Gwen Moore Representative from WI, Democratic
- Riley M. Moore Representative from WV, Republican
- Tim Moore Representative from NC, Republican
- Nathaniel Moran Representative from TX, Republican
- Joseph D. Morelle Representative from NY, Democratic
- Kelly Morrison Representative from MN, Democratic
- Jared Moskowitz Representative from FL, Democratic