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