Series with titles starting with letter "M"
- Marvel Studios: Legends (2021–…)
- Marvel's Hero Project (2019–…)
- Mary Hartman, Mary Hartman (1976–1977)
- Mary Kills People (2017–…)
- Mary Lou (2009-…)
- Mary Shelley's Frankenhole (2010–2017)
- Mary Tyler Moore (1970–1977)
- Maryland (2023)
- Masaba Masaba (2020–…)
- Masada (1981)
- Masameer County (2021–…)
- Mashle: Magic and Muscles (2023–…)
- Mask Girl (2023-…)
- Master Distiller (2019–…)
- Master of None (2015–…)
- Masterchef (2010–…)
- MasterChef Australia (2009–…)
- MasterClass: Neil Gaiman Teaches the Art of Storytelling (2019)
- Masterpiece Classic (1971–…)
- Masterpiece Theatre: Lord Mountbatten - The Last Viceroy (1986–…)
- Masters of Horror (2005–2007)
- Masters of Illusion (2014–…)
- Masters of Science Fiction (2007–…)
- Masters of Sex (2013–2016)
- Masters of the Universe: Revelation (2021–…)
- Masum (2017)
- Mata Hari (2016–…)
- Matador (2014)
- Matchday: Inside FC Barcelona (2019–…)
- Maternal (2023–…)