Mark Harmon is an American record producer, songwriter, and bassist, best known for his work with the rock group the 77s.

[1] Harmon and 77s lead singer Michael Roe collaborated on the instrumental releases, DayDream and Orbis.

Roe and Harmon also teamed up under the moniker 7&7iS to release their Fun with Sound album in 2004.

Harmon also currently performs with Jimmy Pailer & the Prophets, as well as being a member of Mind(X).