- 1 Olivia Belli
- 2 Oceanside
- 3 Ony
- 4 Odetta
- 5 Odessa
- 6 Olivera
- 7 oneil
- 8 Otis McDonald
- 9 Ofelia
- 10 Olivia Grace
- 11 Olivia Dean
- 12 Olivia Addams
- 13 Orkid
- 14 Omara Portuondo
- 15 Ona
- 16 Olga Lounova
- 17 Olivia Rodrigo
- 18 One-T
- 19 OR3O
- 20 Olivia Garcia
- 21 Olivia Lane
- 22 Olivia Herdt
- 23 Oana Radu
- 24 Otilia
- 25 Ofrin
- 26 OSTON
- 27 Ofelia K
- 28 Oxana
- 29 Ornella Vanoni
- 30 Orianthi