•
Madeline Mann (born 1989), American who once held the record for being the smallest known premature baby to survive •
Manfred Mann (musician) (born 1940), musician from South Africa, after whom the eponymous band was named •
Manjeet Mann, actress and author •
Marion Mann (1920–2022), American physician and pathologist •
Marion Mann (singer) (1914–2004), American singer •
Matthias Mann (born 1959), German scientist in the field of mass spectrometry and proteomics •
Marty Mann (1904–1980), first woman to achieve long-term sobriety in Alcoholics Anonymous •
Merlin Mann (born 1966), American writer and editor; author of productivity blog 43folders.com •
Michael Mann (born 1943), American film director, screenwriter, and producer •
Michael Mann (scholar) (1919–1977), German-born American musician and professor of German literature, youngest son of Thomas Mann •
Michael Mann (sociologist) (born 1942), British-born professor of sociology at UCLA •
Michael E. Mann (born 1965), American climate scientist, professor, and member of United States National Academy of Sciences (NAS) •
Monika Mann (1910–1992), German novelist, daughter of Thomas Mann •
Moshe Mann (1907–2004), Israeli military officer who was the first commander of the Golani Brigade == N ==