- 1 ONE OR EIGHT
- 2 OWV
- 3 off the menu
- 4 Omoinotake
- 5 Orange Range
- 6 OuiOui
- 7 OKAMOTO'S
- 8 ONE LOVE ONE HEART
- 9 Orange Spiny Crab
- 10 O.A.Be
- 11 ONEGRAM
- 12 ONIGAWARA
- 13 ONIONRING
- 14 OFF EQUALS
- 15 OOSU:HAN
- 16 One For The Road
- 17 Official髭男dism
- 18 Ovall
- 19 ONEWE
- 20 ONF
- 21 ONE PACT
- 22 OH MY GIRL
- 23 Old English Sheepdog
- 24 ORSEAS
- 25 One Off Them
- 26 ONEUS
- 27 OFFROAD
- 28 ONE N' ONLY
- 29 OCTPATH
- 30 ODD EYE