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- Michelle Mae (from Weird War and formerly of The Make-Up)
- Leslie Mah (from Tribe 8 and formerly of Anti-Scrunti Faction)
- Natalie Maines (from the Dixie Chicks) periodically plays bass during their live shows
- Pia Maiocco (formerly of Vixen)
- Aimee Mann (founding member of 'Til Tuesday)
- Zia McCabe (from The Dandy Warhols)
- Molly McGuire
- Nikki Monninger (from Silversun Pickups)
- Patricia Morrison (The Sisters of Mercy, Gun Club, The Damned)
- Robin Moulder (from TCR and Jack Off Jill)
Read more about this topic: List Of Female Bass Guitarists