| Ord Golf Club | Ord | Nebraska |  United States of America | inactive |
| Ordino Golf Club | La Cortinada - Ordino | Andorra |  Andorra | inactive |
| Örebro City Golf & Country Club - Gustavsvik | Örebro | Örebro |  Sweden | inactive |
| Örebro City Golf & Country Club - Mosjö | Mosjö | Örebro | Sweden | inactive |
| Oregon City Golf Club | Oregon City | Oregon | United States of America | inactive |
| Oregon Country Club | Oregon | Illinois | United States of America | inactive |
| Oregon Trail Country Club | Soda Springs | Idaho | United States of America | inactive |
| Öregrunds Golfklubb | Östhammar | Uppsala | Sweden | inactive |
| Örestads Golfklubb | Lomma | Skåne | Sweden | inactive |
| Öresunds Golfklubb | Häljarp | Skåne | Sweden | inactive |
| Orford Golf Club | Orford | Tasmania |  Australia | inactive |
| Orgill Park Golf Course | Millington | Tennessee | United States of America | inactive |
| Orient (Xiamen) Golf & Country Club | Xiamen | Fujian |  China | inactive |
| Orient Double Eagle Golf Club | Fangshan | Beijing | China | inactive |
| Orient Golf (Macau) Club | Cotai Strip | Macao |  Macao | inactive |
| Orient Ningbo Golf and Country Club | Ningbo | Zhejiang | China | inactive |
| Orient Pearl Country Club (Beijing Ming Zhu) | Shunyi | Beijing | China | inactive |
| Orient Shanghai Golf and Country Club | Shanghai | Shanghai | China | inactive |
| Orient Tianxing Country Club | Chaoyang | Beijing | China | inactive |
| Orient Wenzhou Golf and Country Club | Wenzhou | Zhejiang | China | inactive |
| Orient Wuhan Golf Country and Club | Wuhan | Hubei | China | inactive |
| Oriental Golf Club | Kuchiyokawacho | Hyogo |  Japan | inactive |
| Oriental Sun City Golf Club | Shunyi | Beijing | China | inactive |
| Oriental Sunstar Golf Club | Baoshan | Hsinchu |  Taiwan | inactive |
| Oriental University City Golf Course | Langfang | Hebei | China | inactive |
| Oriente | Ayamonte | Andalucia |  Spain | inactive |
| Oriente | Roma | Lazio |  Italy | inactive |
| Original | Austin | Texas | United States of America | inactive |
| Original | Pleasant Lake | Michigan | United States of America | inactive |
| Original | Ellicott City | Maryland | United States of America | inactive |
| Original | San Pedro Garza Garcia | Nuevo Leon |  Mexico | inactive |
| Original | Trentham | New South Wales | Australia | inactive |
| Original ("The Winter Course") | East Falmouth | Massachusetts | United States of America | inactive |
| Original 18 | Elkhart Lake | Wisconsin | United States of America | inactive |
| Original 9 | Hobart | Wisconsin | United States of America | inactive |
| Origins Golf Club | WaterSound | Florida | United States of America | inactive |
| Orika Golf & Hotel Resort | Sorachi | Hokkaido | Japan | inactive |
| Orinda Country Club | Orinda | California | United States of America | inactive |
| Oriole Golf Club | Margate | Florida | United States of America | inactive |
| Orion Arashiyama Golf Club | Nakijin | Okinawa | Japan | inactive |
| Oriskany Hill Golf Club | Oriskany | New York | United States of America | inactive |
| Orkney Golf Club | Orkney | North West |  South Africa | inactive |
| Orkney Golf Club | Kirkwall | Orkney Islands |  Scotland | inactive |
| Orleans Country Club | Orleans | Vermont | United States of America | inactive |
| Ormeau Golf Club | Belfast | Belfast | Northern Ireland | inactive |
| Ormehoj | Smørum | Hovedstaden |  Denmark | inactive |
| Ormonde Fields Golf Club | Ripley | Derbyshire | England | inactive |
| Ormskirk Golf Club | Ormskirk | Lancashire | England | inactive |
| Orna Golf Country Club | Bemban | Malacca |  Malaysia | inactive |
| Ørnehøj Golfklub | Gistrup | Nordjylland | Denmark | inactive |