- Often LieStatistics
- Oumou SangaréAya Nakamura
- OblígameHéctor Acosta "El Torito"
- Out Of TimeRomeo Blanco
- Outsider Music Vol 1: you don't know what you want, do you?Cosima
- Our Vibe EPDennis Quin
- Off the RecordMatthias Weber (马西尔斯·韦伯)
- ORIGINShasan shah
- Over YouBanda Old Days & Strings
- Only The BraveDoctor Zot
- Only the Brave (Francesco Zeta Remix)Doctor Zot
- Ouvikelli, Vol.3Elji Beatzkilla
- OriginalDji Tafinha
- On the Dancefloor HitsHit the Dancefloor
- On the Floor Party HitsHit the Dancefloor
- One Last DanceTaiwan Mc
- OceanDevid Dega
- Ori OneDevid Dega
- Original SeriesDaniel Meister
- OrthodoxKrabathor
- OmaniDaniel Meister
- Output EPUniversal Project
- Out Side The BoxFlatch
- 사물이 거울에 보이는 것보다 가까이 있음 (Objects in the mirror are closer than they appear)혹시몰라 (Hoksimolla)
- OBRYADLim
- ONE (白盤)山口活性学園 (やまぐちかっせいがくえん)
- On Cello, Bach Violin Partita No. 2Daniel Domb
- ONE (黒盤)山口活性学園 (やまぐちかっせいがくえん)
- ONE山口活性学園 (やまぐちかっせいがくえん)
- 우리별 일호와 얼룩소 OST (卫星少女和奶牛 OST)고경천 (高京天)
- One Last TimeLenny DTOX
- One Last Time (Remix) [feat. Lenny Dtox]Lenny DTOX
- Original Hits: Jimmy Dorsey & His OrchestraJimmy Dorsey & His Orchestra
- Out With ItDavid Ashkenazy
- OvisSheepa
- Od Začátku Do Konce (Explicit)Kritik
- Origin of IllnessKill The Young
- Ordinary Life (KDDK Phonk Remix) [Explicit]Kiddo
- Original 4-Track Recordings Vol. 1: Birth Of A Musical Genius?Khayree
- Ordinary Life (Explicit)Kiddo
- 어쩌다 가족 OST Part.13 (偶然家族 OST Part.13)홍시 (洪时)
- Off Springs #1Big Show
- Orange Edition - Beethoven: Piano Sonata No. 18, Op. 31 No. 3 & Symphony No. 2, Op. 36Bamberg Symphony
- One SoundZepherin Saint
- Orange Edition - Beethoven: Symphony No. 4, Op. 60 & Piano Sonatas Nos. 1 &12Bamberg Symphony
- Orange Edition - Beethoven: Piano Sonatas Nos. 1 & 12 - Symphony No. 2, Op. 36Bamberg Symphony
- OptimisticZepherin Saint
- Out of the BlueTilopa
- Orange Edition - Beethoven: Symphony No. 4 & Piano Sonata No. 18Bamberg Symphony
- One Last ChanceHanne Leland
- OffrandeJean-Pascal Boffo
- OK (Explicit)Otherkin
- OMOIDE IN MY HEAD 2 ~記録シリーズ2~Number Girl (ナンバーガール)
- OMOIDE IN MY HEAD 2 ~記録シリーズ1~Number Girl (ナンバーガール)
- サッポロOMOIDE IN MY HEAD状態 (LAST LIVE AT SAPPORO)Number Girl (ナンバーガール)
- OMOIDE IN MY HEAD 2~記録シリーズ2~Number Girl (ナンバーガール)
- OMOIDE IN MY HEAD 1 ～BEST & B-SIDES～Number Girl (ナンバーガール)
- Open HeartsImran
- Olympia 82William Sheller
- Only You (只有你)김상온 (金尚温)
