- O
- OO
- OO
- OOak
- OakOb
- ObeObo
- OBOOce
- OceOch
- OchOct
- Odd
- OddODM
- ODOOf
- OfOff
- OFFOgr
- OgrOh
- OhOIR
- OirOKA
- OkaOku
- OkuOla
- OlaOld
- OldOli
- OliOli
- OliOls
- OlsOMA
- OmaOme
- OmeOmo
- OMPOnd
- One
- OneOne
- OneOni
- OniOno
- OnoOom
- OomOpe
- OpeOpp
- OppOra
- OraOrb
- OrbOrc
- OrcOrg
- OrgOri
- OriOrk
- OrkOrp
- OrpOrr
- OrrOrv
- OrvOsb
- OsbOsi
- OsiOst
- OstOth
- OthOtt
- OttOue
- OugOut
- OutOut
- OutOut
- OutOve
- OveOVR
- ovrOwl
- OwlOxx
- OxyOZR
- ozz
- Orange (Vietnamese singer)
- Orange 9mm
- Orange and Lemons (Filipino pop rock band)
- Orange Blossom
- Orange Blue (German pop duo)
- Orange Blue (Italian dance project)
- Orange Caramel (After School sub‐unit)
- Orange Dog Club (Indie Garage Rock project led by Tim Turner)
- Orange Goblin (English heavy metal band)
- Orange Goodness, The (Groove-fueled indie rock)
- Orange Grove
- Orange Juice (Scottish post-punk band from 70s-80s)
- Orange Lights, The
- Orange Ocean (Orange Ocean)
- Orange Orange
- Orange Park
- Orange Peels, The
- orange pekoe (real‐world J‐pop duo)
- ORANGE RANGE
- Orange Sector
- Orange Sky (A rock band from the Caribbean Island of Trinidad and Tobago)
- Orange Skyline (Dutch rock band)
- Orange Street (Rock Band from India)
- Orange-I (Belgian 1990/2000s band)
- Orange, Adrian
- Orangefarm (New Zealand indie rock)
- Oranger
- Oranges (post-hardcore/math rock band)
- Oranges & Lemons
- Oranges Band, The
- Orangestar
- Orangestar feat. IA
- Orangez
- Orango
- Oranj Symphonette
- Oranssi Pazuzu (Finnish black metal)
- Orantes, Francisco (Christian music singer-songwriter)
- Orantes, Francisco feat. Orantes, Azucena
- Orantes, Marilú (Christian music artist)
- Oranžās Brīvdienas
- Oratnitza
- Oratorio
- Oratorio The World God Only Knows
- Oratory
- Orax (Italian)
- Orazbayeva, Aisha (Kazakh violinist)
- ORB (Australian prog rock)
- Orb (Lithuanian stoner)
- Orb, The
- Orb, The & Perry, Lee “Scratch”
- Orb, The feat. Perry, Lee “Scratch”
- Orba Squara
- Orbach, Jerry
- Orbach, Jerry, Lansbury, Angela and Chorus
- Orbakaitė, Kristina
- Orbans, The
- Orbison, Joy
- Orbison, Joy & Boddika
- Orbison, Joy w/ Sen, Léa
- Orbison, Joy, Overmono & Kwengface
- Orbison, Roy
- Orbison, Roy & Burgess, Sonny
- Orbison, Roy & Harris, Emmylou
- Orbison, Roy & Lang, K.D.
- Orbison, Roy & Melson, Joe
- Orbison, Roy & Teen Kings, The
- Orbison, Roy and Teen Kings, The
- Orbison, Roy feat. Cash, Johnny, Lewis, Jerry Lee & Perkins, Carl
- Orbison, Roy feat. Harris, Emmylou
- Orbison, Roy feat. Lang, K.D.
- Orbison, Roy with Cash, Johnny, Lewis, Jerry Lee and Perkins, Carl
- Orbit (Boston‐based rock band)
- orbit (German indie pop)
- Orbit (Japanese-Korean Group)
- Orbit Culture (melodic death metal/groove metal)
- Orbit Service
- Orbit, William (English musician, composer and record producer)
- Orbit, William feat. Orton, Beth
- Orbit, William feat. Scattergood, Polly
- Orbita Wiru (Polish rock group)
- Orbital (UK techno group)
- Orbital (atmospheric black metal band from Canada)
- Orbital & Badalamenti, Angelo
- Orbital & Hammett, Kirk
- Orbital & Lady Leshurr
- Orbital & Sleaford Mods
- Orbital Alignment (Progressive Death Metal from Nottingham, UK)
- Orbital feat. Gray, David
- Orbital feat. Hammett, Kirk
- Orbital feat. Hawking, Stephen
