- Oh So Young
- Oh Susanna
- Oh Susannah
- Oh Sweet Ransom
- Oh Tebins
- Oh The Blood
- Oh The Horror
- Oh, The Story!
- Oh Tragic Vinyl Night
- Oh Travioso
- Oh Vocalist
- Oh Well
- Oh What A Night
- Oh What A Nightmare
- Oh Whitney
- Oh Wonbin
- Oh Ye Denver Birds
- Oh Yoko Records Presents
- Oh Yoon Hye
- Ohad Benchetrit
- Ohad Dekel
- Ohad Hitman
- Ohad Talmor
- O'Hagan
- Ohagi Yasuji
- Ohama Anpan
- Ohama Mine
- Ohana Maurice
- Ohanami
- O'Hara
- O'Hara's Playboys
- 大橋のぞみ