Basketball Mannschaften, die mit Ö beginnen
- Oxaco BBC
- Olivarez Sea Lions
- Olimpia
- Orange Academy
- Orange 3 Pinelands (W)
- Oaklands Wolves (W)
- Olympiacos Piraeus BC (W)
- Olympiakos Volou BC (W)
- Olympique Antibes U21
- Olimpia Kings
- Obila CB
- Oregon State Beavers
- Oakland Golden Grizzlies
- Oklahoma State Cowboys
- Omaha Mavericks
- Ole Miss Rebels
- Old Dominion Monarchs
- Oklahoma Sooners
- Obera TC
- Okzhetpes Kokshetay
- Oral Roberts Golden Eagles
- Ohio State Buckeyes
- Ohio Bobcats
- Ovarense (W)
- Olivais de Coimbra (W)
- Oulun NMKY
- Otsuka Corporation Alphas
- Olivol Mundial
- OC Limbazi
- OKK Spars Sarajevo
- Olimpo Basket Alba U20
- Odisseia Basket
- Olivais Futebol Clube
- Obras Sanitarias 2
- Ohud Medina
- OKK Sloboda Tuzla
- Oakland Golden Grizzlies (W)
- Ohio State Buckeyes (W)
- OKK Sabac (W)
- Oklahoma Sooners (W)
- Oklahoma City Blue
- Omaha Mavericks (W)
- Oregon Ducks (W)
- OMC Cobras
- Oklahoma State Cowboys (W)
- Ohio Bobcats (W)
- Oral Roberts Golden Eagles (W)
- Oregon State Beavers (W)
- Old Dominion Monarchs (W)
- Oleggio Magic Basket
- Olimpo Basket Alba
- Orthodox Jordan
- O'Higgins de Rancagua U23
- Ourinhos (Wom)
- Oion Agiou Stefanou
- OK Elefsinas
- OSFB Lyonso
- Oxygen Roma (Wom)
- OFG Basket Team Giussano (Wom)
- OKK Slavija 1996
- OGM Ormanspor (Wom)
- Olivais de Coimbra B
- Ovarense Basquetebol B
- Odivelas BC (Wom)
- Olivais de Coimbra
- Odivelas U21