| Castle Pine Golf Club | Yeoju | Gyeonggi |  Corée du Sud | inactive |
| Castle Pines Country Club | Gardendale | Alabama |  États-Unis | inactive |
| Castle Point Golf Centre | Canvey Island | Essex |  Angleterre | inactive |
| Castle Rock Golf and Recreation | Pembroke | Virginia | États-Unis | inactive |
| Castle Rock Golf Course | Mauston | Wisconsin | États-Unis | inactive |
| Castle Royle Golf & Country Club | Reading | Berkshire | Angleterre | inactive |
| Castle Shannon Golf Course | Hopedale | Ohio | États-Unis | inactive |
| Castle Stuart Golf Links | Inverness | The Highlands | Écosse | inactive |
| Castlebar Golf Club | Castlebar | Mayo |  Irlande | inactive |
| Castlecliff Golf Club | Wanganui | Manawatu-Wanganui |  Nouvelle-Zélande | inactive |
| Castlecomer Golf Club | Castlecomer | Kilkenny | Irlande | inactive |
| Castlecove Country Club | Castlecove | New South Wales |  Australie | inactive |
| Castlefields Golf Club | Brighouse | West Yorkshire | Angleterre | inactive |
| Castlegar Golf Club & RV Park | Castlegar | British Columbia |  Canada | inactive |
| Castlegregory Golf and Fishing Club | Castlegregory | Kerry | Irlande | inactive |
| Castlegregory Golf Links | Castlegregory | Kerry | Irlande | Actif |
| Castleisland Golf Club | Castleisland | Kerry | Irlande | inactive |
| Castleknock Golf Club | Castleknock | Dublin | Irlande | inactive |
| Castlemaine Golf Club | Castlemaine | Victoria | Australie | inactive |
| Castlemartyr Resort | Castlemartyr | Cork | Irlande | Actif |
| Castlemartyr Resort | Castlemartyr | Cork | Irlande | inactive |
| Castlepoint Golf Club | Whakataki | Wellington | Nouvelle-Zélande | inactive |
| Castlerea Golf Club | Castlerea | Roscommon | Irlande | inactive |
| Castlereagh Hills Golf Club | Belfast | Down | Irlande du Nord | inactive |
| Castlerock Golf Club | Castlerock | Londonderry | Irlande du Nord | Actif |
| Castlerock Golf Club Bann Course | Castlerock | Londonderry | Irlande du Nord | Actif |
| Castlerock Golf Club Mussenden Course | Castlerock | Londonderry | Irlande du Nord | Actif |
| Castlerosse Golf Club | Killarney | Kerry | Irlande | inactive |
| Castletown Golf Links | Derbyhaven | Isle of Man |  Île de Man | Actif |
| Castletown Golf Links | Derbyhaven | Isle of Man | Île de Man | Actif |
| Castletroy Golf Club | Castletroy | Limerick | Irlande | inactive |
| Castlewarden Golf Club | Castlewarden | Kildare | Irlande | inactive |
| Castlewood Country Club | Pleasanton | California | États-Unis | inactive |
| Castlewood Golf Course | Castlewood | South Dakota | États-Unis | inactive |
| Castlewood Golf Course | Forest Lake | Minnesota | États-Unis | inactive |
| Castlewoods Country Club | Brandon | Mississippi | États-Unis | inactive |
| Castlex Jeju Golf Club | Seogwipo | Jeju | Corée du Sud | inactive |
| Castlex Qingdao Golf and Resort | Qingdao | Shandong |  Chine | inactive |
| Castlex Seoul Golf Club | Hanam | Gyeonggi | Corée du Sud | inactive |
| Castor Golf Club | Castor | Alberta | Canada | inactive |
| Castro Marim Golfe and Country Club | Castro Marim | Algarve |  Portugal | Actif |
| Castro Marim Golfe and Country Club | Castro Marim | Algarve | Portugal | Actif |
| Castropol Golf | Castropol | Asturias |  Espagne | inactive |
| Caswell Pines Golf Club | Yanceyville | North Carolina | États-Unis | inactive |
| Catalina Country Club | Batemans Bay | New South Wales | Australie | inactive |
| Catalina Island Golf Club | Avalon | California | États-Unis | inactive |
| Catalonia Cabeza De Toro | Bavaro | La Altagracia |  République dominicaine | inactive |
| Catalonia Caribe Club | Bavaro | La Altagracia | République dominicaine | inactive |
| Catamount Golf Club | Williston | Vermont | États-Unis | inactive |
| Catamount Ranch & Club | Steamboat Springs | Colorado | États-Unis | inactive |