| Oasis Golf Club and Conference | Loveland | Ohio |  United States of America | inactive |
| Oasis Golf Course | Cancún | Quintana Roo |  Mexico | inactive |
| Oasis Park Golf Course | Ephrata | Washington | United States of America | inactive |
| Oasis Sports Park | Chesterfield | Virginia | United States of America | inactive |
| Oasis/Canyon | Scottsdale | Arizona | United States of America | inactive |
| Oasis/Desert | Scottsdale | Arizona | United States of America | inactive |
| Oast Park Golf Club | Snodland | Kent |  England | inactive |
| Oatlands Golf Club | Oatlands | Tasmania |  Australia | inactive |
| Oatlands Golf Club | Oatlands | New South Wales | Australia | inactive |
| Oatridge Golf Course | Ecclesmachan | West Lothian | Scotland | inactive |
| Obana | Haga | Tochigi |  Japan | inactive |
| Obana-Satsuki | Haga | Tochigi | Japan | inactive |
| Obara Country Club | Toyota | Aichi | Japan | inactive |
| Obatago Golf Club | Kanra | Gunma | Japan | inactive |
| Oberhessischer Golf-Club Marburg | Colbe | Hesse |  Germany | inactive |
| Oberlin Country Club | Oberlin | Kansas | United States of America | inactive |
| Oberlin Golf Club | Oberlin | Ohio | United States of America | inactive |
| Oberon Golf Club | Oberon | New South Wales | Australia | inactive |
| Obihiro Country Club | Kasai | Hokkaido | Japan | inactive |
| Obihiro Kokusai Country Club | Nakagawa | Hokkaido | Japan | inactive |
| Obihiro Riverside Golf Club | Obihiro | Hokkaido | Japan | inactive |
| Obihiro Shirakaba Country Club | Kato | Hokkaido | Japan | inactive |
| Observatory Golf Club | Johannesburg | Gauteng |  South Africa | inactive |
| Obuasi Golf Club | Obuasi | Ashanti |  Ghana | inactive |
| Ocala Golf Club | Ocala | Florida | United States of America | inactive |
| Ocala National Golf Club | Ocala | Florida | United States of America | inactive |
| Ocala Palms Golf Club | Ocala | Florida | United States of America | inactive |
| Ocaragua golf Club | Marcos Paz | Buenos Aires |  Argentina | inactive |
| Occidente | Sciacca | Sicilia |  Italy | inactive |
| Occoneechee Golf Club | Hillsborough | North Carolina | United States of America | inactive |
| Ocean | Mashpee | Massachusetts | United States of America | inactive |
| Ocean | Kailua-Kona | Hawaii | United States of America | inactive |
| Ocean | Ponte Vedra Beach | Florida | United States of America | inactive |
| Ocean | Palm Coast | Florida | United States of America | inactive |
| Ocean | Rancho Santa Fe | California | United States of America | inactive |
| Ocean | Chongdan | Kanchanaburi |  Thailand | inactive |
| Ocean | Jeju | Jeju |  South Korea | inactive |
| Ocean | Jeju | Jeju | South Korea | inactive |
| Ocean | Yeongdeok | North Gyeongsang | South Korea | inactive |
| Ocean | Jung | Incheon | South Korea | inactive |
| Ocean | Nago | Okinawa | Japan | inactive |
| Ocean | Kamo | Shizuoka | Japan | inactive |
| Ocean | Cape Schanck | Victoria | Australia | inactive |
| Ocean - Arroyo | San Jose del Cabo | Baja California Sur | Mexico | inactive |
| Ocean Acres Country Club | Manahawkin | New Jersey | United States of America | inactive |
| Ocean Bay Golf Club | Xinglong | Hainan |  China | inactive |
| Ocean Breeze Golf and Country Club | Boca Raton | Florida | United States of America | inactive |
| Ocean Castle Country Club | Nakagami | Okinawa | Japan | inactive |
| Ocean City Golf & Yacht | Berlin | Maryland | United States of America | inactive |
| Ocean City Municipal Golf Course | Ocean City | New Jersey | United States of America | inactive |