| OslerBrook Golf & Country Club | Collingwood | Ontario |  Canada | inactive |
| Oslo Golfklubb | Bogstad | Oslo |  Norway | inactive |
| Osnabrucker Golf Club | Bissendorf | Lower Saxony |  Germany | inactive |
| Oso Beach Municipal Golf Club | Corpus Christi | Texas |  United States of America | inactive |
| Osoyoos Golf & Country Club | Osoyoos | British Columbia | Canada | inactive |
| Osprey | The Villages | Florida | United States of America | inactive |
| Osprey | Ponce | Puerto Rico |  Puerto Rico | inactive |
| Osprey I Course (Calibogue) | Hilton Head Island | South Carolina | United States of America | inactive |
| Osprey I Course (Haig) | Hilton Head Island | South Carolina | United States of America | inactive |
| Osprey II Course (Calibogue) | Hilton Head Island | South Carolina | United States of America | inactive |
| Osprey II Course (Haig) | Hilton Head Island | South Carolina | United States of America | inactive |
| Osprey Links Golf Club | Callander | Ontario | Canada | inactive |
| Osprey Point | Kiawah Island | South Carolina | United States of America | inactive |
| Osprey Point Golf Course | Boca Raton | Florida | United States of America | inactive |
| Osprey Ridge | Lake Buena Vista | Florida | United States of America | inactive |
| Osprey Ridge Golf Club | Lunenburg | Nova Scotia | Canada | inactive |
| Osprey Shores | Guysborough | Nova Scotia | Canada | inactive |
| Osprey Shores Golf Resort | Guysborough | Nova Scotia | Canada | inactive |
| Osprey to Heron | West Palm Beach | Florida | United States of America | inactive |
| Osprey Valley Resort | Alton | Ontario | Canada | inactive |
| Osprey/Egret | The Villages | Florida | United States of America | inactive |
| Osprey/Egret | Bonita Springs | Florida | United States of America | inactive |
| Osprey/Heron | West Palm Beach | Florida | United States of America | inactive |
| Osseo Golf & Recreation Center | Osseo | Wisconsin | United States of America | inactive |
| Ost | Duisburg | North Rhine-Westphalia | Germany | inactive |
| Ost | Himberg | Lower Austria |  Austria | inactive |
| Ost-Nord | Langenhagen | Lower Saxony | Germany | inactive |
| Øst-Syd | Silkeborg | Midtjylland |  Denmark | inactive |
| Ost-West | Ahaus | North Rhine-Westphalia | Germany | inactive |
| Ost-West | Langenhagen | Lower Saxony | Germany | inactive |
| Östad Golf | Väderstad | Östergötland |  Sweden | inactive |
| Östad Golfklubb | Väderstad | Östergötland | Sweden | inactive |
| Österåkers Golfklubb | Åkersberga | Stockholm | Sweden | inactive |
| Österled | Åkersberga | Stockholm | Sweden | inactive |
| Österlens Golfklubb | Simrishamn | Skåne | Sweden | inactive |
| Östersund-Frösö Golfklubb | Frösön | Jämtland | Sweden | inactive |
| Østmarka Golfklubb | Ytre Enebakk | Akershus | Norway | inactive |
| Östra | Nyköping | Södermanland | Sweden | inactive |
| Östra Göinge Golfklubb | Knislinge | Skåne | Sweden | inactive |
| Östra/Norra | Värnamo | Jönköping | Sweden | inactive |
| Østs | Hjørring | Nordjylland | Denmark | inactive |
| Østs-Nord | Hjørring | Nordjylland | Denmark | inactive |
| Ostschweizerischer Golf Club | Niederburen | St. Gallen |  Switzerland | inactive |
| Ostsee Golf Club Wittenbeck | Wittenbeck | Mecklenburg-Vorpommern | Germany | inactive |
| Osugi | Tsuduki | Kyoto |  Japan | inactive |
| Osugi-Daifuku | Tsuduki | Kyoto | Japan | inactive |
| Osuzu | Miyazaki | Miyazaki | Japan | inactive |
| Oswego Country Club | Oswego | New York | United States of America | inactive |
| Oswego Golf Course | Oswego | Kansas | United States of America | inactive |
| Oswego Lake Country Club | Lake Oswego | Oregon | United States of America | inactive |