E-Sport Squadre che iniziano con O
- Odense Bulldogs
- Ofner, Sebastian
- Osasco São Cristovão Saúde (W)
- Ottawa Senators
- Ostapenko, Jelena
- Ortiz, Jamaine
- Olympique Ales
- Olbia Calcio 1905 U19
- Olympiacos Piraeus VB
- OGC Sigma Esports
- OKSavingsBank BRION.Ch
- OH Leuven (W)
- Omonia Aradippou
- Orlando Pirates Reserves
- Ogc Sigma
- Openjobmetis Varese
- Orbit Anonymo Esports
- ORL Magic
- Oida
- ODDIK Academy
- One Star
- Oskarshamn
- Örebro HK
- One Star Esports
- Olivieri, Genaro Alberto
- Olimpia Asuncion
- Orsomarso
- Orbit Anoynmo
- Orlando Magic (blaylockk)
- Oklahoma City Thunder (panteraxball)
- Oklahoma City Thunder (Revenant)
- Oklahoma City Thunder (yammyloon)
- Oklahoma City Thunder (Pakapaka)
- Oh My God.A