FM3 is a Beijing, China-based music duo.

FM3, FM 3 or FM-3 may also refer to:

Farm to Market Road 3, a state-maintained highway in Texas Forza Motorsport 3, a racing game Front Mission 3, a tactical role-playing game FM3 Classical Music, the former name of RTÉ lyric fm

See also Nikon FM3A, an SLR camera