- 3Deep (CA/US boy band, key track "Into You")
- 3drac
- 3Ds (New Zealand noise pop band)
- 3Dvoz
- 3ee
- 3ème Œil, Le
- 3FOR3 (US Christian pop trio)
- 3FORCE
- 3FORCE feat. Adams, Robin
- 3FORCE feat. McDuffee, Megan
- 3FORCE feat. Raizer
- 3FORCE feat. Scandroid
- 3FORCE feat. Young Medicine
- 3He
- 3HIEF (United States Experimental Hip hop)
- 3JS (Nederpop trio)
- 3JS & Damme, ten, Ellen
- 3JS met Lange Frans
- 3kliksphilip
- 3l3d3p (Vada Vada Collective Member)
- 3LAU
- 3LAU & Nom De Strip feat. Estelle
- 3LAU & Said the Sky feat. NÉONHÈART
- 3LAU feat. Bright Lights
- 3LAU feat. Hewitt, Emma
- 3LAU feat. Luna Aura
- 3LAU feat. MAX
- 3LAU feat. Oly
- 3LAU feat. Paige, Carly
- 3LAU feat. XIRA
- 3LAU, Paris & Simo & Bright Lights
- 3LAU, Paris & Simo feat. Bright Lights
- 3LH
- 3LNA
- 3LNA feat. prod.Kitty
- 3logit
- 3LW
- 3LW feat. Lil Wayne
- 3LW feat. Lil’ Kim
- 3LW feat. Loon
- 3LW feat. Nas
- 3mouth
- 3nacria
- 3nity Brothers (French band)
- 3oda Kru
- 3OH!3
- 3OH!3 feat. 100 gecs
- 3OH!3 feat. Kesha
- 3OH!3 feat. Perry, Katy
- 3ohBlack
- 3piece (South Korean trio under SW Entertainment)
- 3Plusss
- 3Plusss x Falco
- 3PM (Baltimore Pop Punk Band)
- 3R2 (producer/DJ Kevin Shih)
- 3rd Alley
- 3rd and the Mortal, The
- 3rd Bass (New York hip-hop group)
- 3rd Bass feat. Chubb Rock
- 3rd Bass feat. KMD
- 3rd Bass feat. Nice & Smooth
- 3rd Bass feat. Zev Love X
- 3rd Coast (Korean electronica trio)
- 3rd Edge
- 3rd Face
- 3rd Faze
- 3rd Force
- 3rd Matinee
- 3rd Party (Dance-pop, Eurodance group)
- 3rd Prototype
- 3rd Prototype feat. Harley Bird/ Franco, Valentina
- 3rd Root
- 3RD Season
- 3rd Secret (grunge supergroup)
- 3rd Storee
- 3rd Strike
- 3rd Trip
- 3rdegree (USA Prog Rock Band)
- 3rio, The
- 3robi (Dutch-Moroccan rapper)
- 3rty (Nigerian Afrocentric Musician)
- 3somesisters
- 3Strange & Grace, Kenya
- 3T (Taj, Taryll and TJ Jackson)
- 3T duet with Jackson, Michael
- 3T feat. Crichlow, Herbie
- 3T feat. Jackson, Michael
- 3T feat. Prince Markie Dee
- 3TEETH
- 3TEETH & Gordon, Mick