- FFaa
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- FalFam
- FamFan
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- FieFig
- FigFil
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- FinFin
- FinFio
- FioFir
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- FixFla
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- FucFuj
- FujFul
- FulFun
- funFun
- FunFur
- FurFur
- FurFut
- FutFut
- FutFuz
- FuzFZM
- Four Colourz
- Four Eyes (Erin Lovett; indie pop from USA)
- Four Fists
- Four Freshmen, The
- Four Fried Fish & Flyin' Horns
- FOUR GET ME A NOTS
- Four Horsemen, The (US blues band)
- Four Jacks (Danish vocal quartet)
- Four Jacks and a Jill
- Four Jets (Norwegian pop band)
- Four King Cousins
- Four Kings (2000s Coventry Band)
- Four Knights, The
- Four Lads, The
- Four Letter Lie
- Four Lovers, The
- Four Mandarines
- Four Men and a Dog
- Four Minutes Til Midnight
- Four Mod
- Four of Diamonds
- Four Owls, The
- Four Owls, The feat. Baxter, Jam
- Four Owls, The feat. Dirty Dike
- Four Owls, The feat. R.A. the Rugged Man
- Four Owls, The feat. Smellington Piff
- Four Pennies, The (60s UK male pop group known for Juliet)
- Four Pennies, The (60s US girl group, later became The Chiffons)
- Four Postmen, The
- Four Preps, The
- Four Question Marks (French death/groove metal band a.k.a. “????”)
- Four Question Marks
- Four Rascals, The (barbershop quartet)
- Four Seasons, The (aka Frankie Valli and the Four Seasons)
- Four Seconds Ago
- Four Seven Entertainment
- Four Speeds, The (60s surf group based in Los Angeles, CA)
- Four Star Mary
- Four Stars (Chicago pop punk)
- Four Stroke Baron
- Four Sure
- Four Tet
- Four Tet, Goulding, Ellie
- Four Tops (Motown)
- Four Tops and Supremes, The
- Four Tunes, The (1950's doo-wop group)
- Four Unusual Suspects
- Four Vagabonds, The (African-American male vocal group (1933–1953))
- Four Visions
- Four Voices, The
- Four Walls Falling
- Four Year Strong
- Four, Citizen
- FOUR50
- Four80East
- Fouradi
- Fource
- FOURCE (Dutch boyband)
- Foureira, Eleni
- Foureira, Eleni, Hawk
- FourFive (Hip hop artist from New York)
- Fourmost, The
- Fournier, Jeanick
- Fournier, Pierre (cellist)
- Fournier, Sean
- Fournier, Zaza
- Fourone (Italian band)
- Fourplay (American smooth jazz group)
- Fourplay feat. Benét, Eric
- Fourplay feat. Collins, Phil
- Fourplay feat. McDonald, Michael
- FourPlay String Quartet
- Fours
- Fourteen 14 (Italian Eurodance act)
- Fourteen 14
- Fourth Circle (also 4th Circle)
- Fourth Dimension (Serbian psytrance/chillout duo)
- Fourth Dominion
- Fourth Floor Collapse
- Fourth Grade Nothing
- Fourth of July
- Fourth Wall, The
- Fourth World (Brazilian jazz)
- Fourtwnty
- Fourtwnty ft. Utami, Charita
- FOURTY (René Rackwitz)
- FOURTY & Bausa
- FOURTY & Jamule
- FOURTY & Mathea
- FOURTY & PA Sports