Series with the first letter - "M"
- Marriage Contract (2016)
- Marriage of God & Soul Godannar!! (2003–2004)
- Married (2014–2015)
- Married at First Sight (2014–…)
- Married at First Sight Australia (2015–…)
- Married with Children (1986–1997)
- Marry Me Now (2018–…)
- Marry Me, or Not? (2015–2016)
- Mars (2016–…)
- Martha's Vineyard Mysteries (2020–…)
- Martin (1992–1997)
- Martin Chuzzlewit (1994)
- Marty (1968–1969)
- Marvel 616 (2020–…)
- Marvel Studios: Assembled (2021–…)
- Marvel Studios: Legends (2021–…)
- Marvel's Hero Project (2019–…)
- Mary Kills People (2017–…)
- Mary Shelley's Frankenhole (2010–2017)
- Mary Tyler Moore (1970–1977)
- Masaba Masaba (2020–…)
- Masada (1981)
- Masameer County (2021–…)
- Master Distiller (2019–…)
- Master of None (2015–…)
- Masterchef (2010–…)
- MasterChef Australia (2009–…)
- Masterpiece Classic (1971–…)
- Masterpiece Theatre: Lord Mountbatten - The Last Viceroy (1986–…)
- Masters of Horror (2005–2007)