Voleybol Ö ile başlayan takımlar
- Osasco São Cristovão Saúde (W)
- Osasco VC (Wom)
- OrPo
- Osasco-vc-women
- Oriveden-ponnistus-women
- Ok-partizan-beograd
- Osasco Volei Clube W
- Oţelul Galaţi
- Osacc-haro-rioja-voley-women
- Olimpia 2023 (Youth) (Wom)
- Omichka (Wom)
- OK Dinamo Zagreb Women
- OnlyBio Pałac Bydgoszcz (W)
- Ottawa Senators
- OK Radnicki U19 (Wom)
- OK Obilic U19 (Wom)