- O
- OO
- OO
- OOak
- OakObe
- ObeObs
- ObsOce
- OceOCS
- OCSOda
- OdaODE
- ODEODU
- ODUOfe
- OfeOfr
- oftOh
- OhOhj
- OHKOji
- OJMOke
- OkeOla
- OlaOld
- OldOle
- OleOli
- OliOll
- OllOm
- OmOme
- OmeOmn
- OmnOnc
- One
- OneOne
- OneOni
- ONIOno
- OnoOon
- OonOpe
- OpeOpt
- Ora
- OraOrc
- OrcOrd
- OrdOrg
- OrhOri
- OriOrm
- OrmOrq
- OrqOrt
- OrtOsb
- OsbOsh
- OshOss
- OssOTF
- OtgOtt
- OttOue
- OueOut
- OutOut
- OutOut
- OutOve
- OveOwe
- OweOwn
- OwsOza
- OzaOZZ
- Oh Honey
- Oh Jeremiah
- Oh La La ! (french band)
- Oh Land
- Oh Land feat. Turboweekend
- Oh Laura
- Oh Lonesome Ana (Cali Slowcore)
- Oh Maria
- Oh Mercy
- OH MY GIRL
- OH MY GIRL BANHANA
- oh my god
- Oh My God! It's The Church (London UK funk rock band)
- Oh My! (Leeds pop duo)
- Oh My! (Swedish indie pop band)
- Oh No
- Oh No feat. Blacc, Aloe
- Oh No feat. Epps, Stacy
- Oh No feat. Frank-N-Dank
- Oh No feat. LMNO
- Oh No feat. MF DOOM
- Oh No feat. Murs
- Oh No feat. Vast Aire
- Oh No Fiasco
- Oh No Not Stereo
- Oh No Oh My
- Oh No Ono
- Oh No! Yoko
- oh ok
- Oh Pep!
- Oh Romance
- Oh Romeo
- Oh Sees (formerly known as Thee Oh Sees)
- Oh Snap It's Luke!
- Oh Susanna
- Oh The Blood
- Oh The Horror
- oh the joy. (new age/meditation music)
- Oh The Larceny
- Oh Well
- Oh Wonder
- Oh, Flamingo! (Filipino indie rock band)
- Oh, Ha-young
- Oh, Hush!
- Oh, Juliet!
- Oh, Kevin
- Oh, Libia!
- Oh, Manhattan
- Oh, Nadia
- Oh, Ny
- Oh, Rose
- Oh, Sleeper
- Oh, The Story!
- Oh, Weatherly (TX Pop Punk Band)
- Oh! (of Tromsø, Norway)
- Oh! Ayatollah
- Oh! Penelope
- Oh! Tiger Mountain
- Oh! You Pretty Things (Charlotte band)
- Oh!, The
- Oh. (aka Olivia Hadjiioannou)
- Oh'laville
- Ohad
- Ohal (Ohal Grietzer)
- Ohana Bam
- Ohara, Raz and Odd Orchestra, The
- Ōhara, Sakurako
- Ohara, Yuiko
- Ohashi, Ayaka
- Ohashi, Chippoke
- Ohashi, Junko
- ohashiTrio
- Ohasis (Oasis Tribute band from Nottingham)
- Ohbijou
- Ohead
- OHEY
- OhGeesy
- OhGeesy feat. BIA
- OhGeesy Feat. Boogie Wit da Hoodie, A
- OhGeesy feat. Cash Kidd
- OhGeesy Feat. Central Cee
- OhGeesy Feat. DaBaby
- OhGeesy feat. Kalan.FrFr
- OhGeesy feat. Tyga
- ohGr (electro-industrial band)
- Ohguro, Maki
- Ohio Express
- Ohio Players
- Ohio State University Marching Band
- Ohja, Udhav, Shetty, Manohar, Ishaan, Pandit, Shweta, Bhatawdekar, Sonali & Mazumdar, Preetha
