- 1 Olivia Rodrigo
- 2 Olivia O'Brien
- 3 Olivia Dean
- 4 OR3O
- 5 Oly
- 6 Olive Beat
- 7 Ony
- 8 Origa
- 9 Olivia Herdt
- 10 Olivia Newton-John
- 11 Otilia
- 12 Oceana
- 13 Ofelia K
- 14 Ofelia
- 15 Orianthi
- 16 Olivia Belli
- 17 ooxygen
- 18 Oonagh
- 19 Ofrin
- 20 One T
- 21 Olivia Addams
- 22 Olidena
- 23 Olivia Holt
- 24 Orla Fallon
- 25 oleta adams
- 26 Olivia Broadfield
- 27 Oh Susanna
- 28 Orenda Fink
- 29 Oh Land
- 30 Olivia Theresa Longott