- M. Caldwell Butler Papers1
- M. Rupert Cutler Papers125
- M. Thomas Inge papers2
- MAGLEV Collection4
- Maddex Family Papers1
- Madison E. Marye Papers4
- Maggie Anderson, Poet, Papers66
- Major General Kenneth D. Gray Papers1
- Making of Virginia Architecture Collection1
- Malcolm Davis, Artist, Papers14
- Malcolm MacPherson Brownlee Civil War diary and transcription1
- Manuscripts Artifact Collection5
- Manuscripts Audiovisual Collection13
- Map of Washington & Smyth Counties with Abingdon, Glade Spring, Marion, Saltville & Chilhowie, Virginia1
- Marc Harshman, Poet Laureate of West Virginia, Papers29