| Oegstgeester Golfclub | Oegstgeest | Zuid-Holland |  Netherlands | inactive |
| Oeiras Golf | Oeiras | Lisboa e Setúbal |  Portugal | inactive |
| Oeste Ranch Golf Course | Weatherford | Texas |  United States of America | inactive |
| Offentlicher | Bosdorf | Schleswig-Holstein |  Germany | inactive |
| Offentlicher | Pilsach | Bavaria | Germany | inactive |
| Oga Golf Club | Oga | Akita |  Japan | inactive |
| OGA Golf Course | Woodburn | Oregon | United States of America | inactive |
| Ogaki Country Club | Ibi | Gifu | Japan | inactive |
| Ogasa | Omaezaki | Shizuoka | Japan | inactive |
| Ogasa (Young Bamboo) | Omaezaki | Shizuoka | Japan | inactive |
| Ogawa Country Club | Hiki | Saitama | Japan | inactive |
| Ogbourne Downs Golf Club | Johannesburg | Wiltshire |  England | inactive |
| Ogden Golf & Country Club | Ogden | Utah | United States of America | inactive |
| Ogeechee Valley Country Club | Louisville | Georgia | United States of America | inactive |
| Oglebay Resort | Wheeling | West Virginia | United States of America | inactive |
| Ogna Golfklubb | Sirevåg | Rogaland |  Norway | inactive |
| Ogori Country Club | Ogori | Fukuoka | Japan | inactive |
| Ogose Golf Club | Hiki | Saitama | Japan | inactive |
| Ogura Country Club | Shimomike | Wakayama | Japan | inactive |
| Oh-Hatano Country Club | Hadano | Kanagawa | Japan | inactive |
| Ohara Onjuku Golf Club | Isumi | Chiba | Japan | Active |
| Ohariu Valley Golf Club | Wellington | Wellington |  New Zealand | inactive |
| Ohgane Golf Club | Nasu | Tochigi | Japan | inactive |
| Ohhara | Mino | Hyogo | Japan | inactive |
| Ohinata Country Club | Sakura | Tochigi | Japan | inactive |
| Ohio County Community Golf Course | Hartford | Kentucky | United States of America | inactive |
| Ohio Prestwick Country Club | Uniontown | Ohio | United States of America | inactive |
| Ohio State University Golf Club | Columbus | Ohio | United States of America | inactive |
| Ohio University Golf Course | Athens | Ohio | United States of America | inactive |
| Ohiradai Country Club | Tochigi | Tochigi | Japan | inactive |
| Ohmurawan Country Club - New Course | Omura | Nagasaki | Japan | inactive |
| Ohmurawan Country Club - Old Course | Omura | Nagasaki | Japan | inactive |
| Ohope International Golf Club | Ohope | Bay of Plenty | New Zealand | inactive |
| Ohotsuku Country Club | Abashiri | Hokkaido | Japan | inactive |
| Ohsumi Country Club | Osaki | Kagoshima | Japan | inactive |
| Ohtakijo Golf Club | Isumi | Chiba | Japan | inactive |
| Ohtama Taiga Country Club | Otama | Fukushima | Japan | inactive |
| Ohtone Country Club | Bando | Ibaraki | Japan | inactive |
| Ohtsuki Country Club | Otsuki | Yamanashi | Japan | inactive |
| Ohyama Camellia Country Club | Toyama | Toyama | Japan | inactive |
| Öijared Resort | Floda | Västra Götaland |  Sweden | inactive |
| Oil Field Recreation Association Golf Course | Healdton | Oklahoma | United States of America | inactive |
| Oirase | Towadako | Aomori | Japan | inactive |
| Oishi | Otsu | Shiga | Japan | inactive |
| Oiso | Ashigarakami | Kanagawa | Japan | inactive |
| Oita Chuo Golf Club | Oita | Oita | Japan | inactive |
| Oita Country Club - Tsukigata Course | Oita | Oita | Japan | inactive |
| Oita Country Club - Yoshino Course | Oita | Oita | Japan | inactive |
| Oita Fujimi Country Club | Oita | Oita | Japan | inactive |
| Oita Public Golf Course | Oita | Oita | Japan | inactive |