- 3 (Keith Emerson, Carl Palmer, Robert Berry)
- 3 (US progressive rock band)
- 3 + 2 (From Spain)
- 3 Amigos (Electronic music trio Butler, Di Scala & Henry)
- 3 Are Legend (Belgian/US DJ trio Dimitri Vegas, Like Mike & Steve Aoki)
- 3 Are Legend & W&W
- 3 Busserulls
- 3 Clubmen, The (band)
- 3 Colonias, Die
- 3 Colours Red
- 3 Daft Monkeys
- 3 Days of Silence
- 3 Days of Wonder
- 3 Dayz Whizkey
- 3 de Copas (Mexican band)
- 3 Deep (00s rap, Lil Phat, Shell & Mouse, key track "Watch My Shoes")
- 3 Degrés Est
- 3 Doors Down
- 3 Doors Down feat. Seger, Bob
- 3 Dope Brothas
- 3 Feet Smaller
- 3 Finer (Kizomba (Angolan))
- 3 Fox Drive (acoustic bluegrass group)
- 3 Fromages, Les
- 3 Fromages, Les feat. Axel de Wizo
- 3 Gars su’l Sofa
- 3 Heath Brothers (Southern Gospel family trio)
- 3 Hürel
- 3 Inches of Blood
- 3 Kings, The
- 3 lb. Thrill
- 3 Melancholy Gypsys
- 3 Men & A Melody (Barbershop Quartet)
- 3 Ménestrels, Les
- 3 Meter Peter
- 3 Mice
- 3 minutes sur mer
- 3 Mustaphas 3 (British band)
- 3 na Bossa (original formation)
- 3 na Bossa (second formation by DeckDisc)
- 3 Na Massa
- 3 Na Massa
- 3 Na Massa feat. Céu
- 3 Na Massa feat. de Freitas, Thalma
- 3 Na Massa feat. Leal, Leandra
- 3 Na Massa feat. Miranda, Nina
- 3 Na Massa feat. Pitty
- 3 of a Kind
- 3 of Hearts
- 3 Of Life (Psytrance)
- 3 on the Bund
- 3 One Oh
- 3 Palavrinhas (Braziliam Christian Music for Kids)
- 3 Paraguayos, Los
- 3 Pesos
- 3 Phase
- 3 Phase feat. Motte, Dr.
- 3 Pill Morning
- 3 Pints Gone
- 3 Point Landing
- 3 Quarters Dead
- 3 Steps Ahead (Peter-Paul Pigmans)
- 3 Sud Est (Romanian dance music group)
- 3 Sudamericanos, Los
- 3 the Hard Way (New Zealand hip hop group)
- 3 Tornados
- 3 Wheeler Band
- 3 Winans Brothers
- 3 Yardas (Peruvian, Hard rock)
- 3 Years Hollow
- 3 Years Hollow feat. Lowery, Clint
- 3-11 Porter
- 3-2 Get Funky
- 3-D (Ralph D'Agostino, Tommy Musto & Tommy Sozzi)
- 3-O-Matic
- 3-Way Playaz
- 3, Capo
- 3. Generation, Die
- 3.2 (progressive rock project)
- 3.25 (Rap français)
- 3.N.D
- 3’s a Crowd (Vancouver folk band)
- 3*D (house artist, released Georgy Porgy)
- 3% (3percent, ThreePercent)
- 3% ft. Presets, The
- 3+2 (hungarian band)
- 30 (30 (USA))
- 30 Amp Fuse
- 30 Deep Grimeyy
- 30 Deep Grimeyy feat. NLE Choppa
