Series with the first letter - "M"
- McMillan & Wife (1971–1977)
- McMillions (2020)
- Me and Mrs Jones (2012–…)
- Meadowlands (2007)
- Mech-X4 (2016–2018)
- Medal of Honor (2018–…)
- Medical Police (2020–…)
- Medici: Masters of Florence (2016–…)
- Medici: The Magnificent (2018–…)
- Medium (2005–2011)
- Megiddo (2017)
- Meitantei Conan: Zero no Tea Time (2022–…)
- Melrose Place (1992–1999)
- Melrose Place (2009–2010)
- Melting Me Softly (2019)
- Men at Work (2012–2014)
- Men in Kilts: A Roadtrip with Sam and Graham (2021–…)
- Men of a Certain Age (2009–2011)
- Mentalhood (2020–…)
- Mercy Street (2016–2017)
- Merhamet (2013–2014)
- Merlí (2015–2018)
- Merlí. Sapere Aude (2019–2021)
- Merlin (2008–2012)
- Merry Happy Whatever (2019–…)
- Messiah (2020–…)
- Messiah: The Promise (2004)
- Metalocalypse (2006–2013)
- Meteor Garden (2018–…)
- Meurtres à... (2013–…)