- 1 欧阳菲菲
- 2 OOHYO
- 3 OH!nle
- 4 欧若拉
- 5 OLIVIA
- 6 OYEON (오연)
- 7 Osanzi
- 8 OoOo
- 9 Oran-G
- 10 Ora
- 11 ONE
- 12 OSTER project
- 13 OKI
- 14 Only You
- 15 OVCOCO (오브코코)
- 16 Odd Time
- 17 OHNEW
- 18 onsu
- 19 Obze (오브제)
- 20 OA
- 21 OPENN (오픈)
- 22 onthedal
- 23 Oo
- 24 OUL (오울)
- 25 Okayuka
- 26 Offing (오핑)
- 27 OKEY W
- 28 ocsoosu
- 29 OMOIDE LABEL
- 30 OHDH (오드)