| Castlecove Country Club | Castlecove | New South Wales |  Australia | inactive |
| Castlefields Golf Club | Brighouse | West Yorkshire |  England | inactive |
| Castlegar Golf Club & RV Park | Castlegar | British Columbia |  Canada | inactive |
| Castlegregory Golf and Fishing Club | Castlegregory | Kerry |  Ireland | inactive |
| Castleisland Golf Club | Castleisland | Kerry | Ireland | inactive |
| Castleknock Golf Club | Diswellstown | Dublin | Ireland | inactive |
| Castleknock Golf Club | Castleknock | Dublin | Ireland | inactive |
| Castlemaine Golf Club | Castlemaine | Victoria | Australia | inactive |
| Castlemartyr Resort | Castlemartyr | Cork | Ireland | inactive |
| Castlemartyr Resort | Castlemartyr | Cork | Ireland | inactive |
| Castlepoint Golf Club | Whakataki | Wellington |  New Zealand | inactive |
| Castlerea Golf Club | Castlerea | Roscommon | Ireland | inactive |
| Castlereagh Hills Golf Club | Belfast | Down | Northern Ireland | inactive |
| Castlerock Golf Club | Castlerock | Londonderry | Northern Ireland | inactive |
| Castlerock Golf Club Bann Course | Castlerock | Londonderry | Northern Ireland | Active |
| Castlerock Golf Club Mussenden Course | Castlerock | Londonderry | Northern Ireland | Active |
| Castlerosse Golf Club | Killarney | Kerry | Ireland | inactive |
| Castletown Golf Links | Derbyhaven | Isle of Man |  Isle of Man | Active |
| Castletroy Golf Club | Castletroy | Limerick | Ireland | inactive |
| Castlewarden Golf Club | Castlewarden | Kildare | Ireland | inactive |
| Castlewood Country Club | Pleasanton | California |  United States of America | inactive |
| Castlewood Golf Course | Castlewood | South Dakota | United States of America | inactive |
| Castlewood Golf Course | Forest Lake | Minnesota | United States of America | inactive |
| Castlewoods Country Club | Brandon | Mississippi | United States of America | inactive |
| Castlex Jeju Golf Club | Seogwipo | Jeju |  South Korea | inactive |
| Castlex Qingdao Golf and Resort | Qingdao | Shandong |  China | inactive |
| Castlex Seoul Golf Club | Hanam | Gyeonggi | South Korea | inactive |
| Castor Golf Club | Castor | Alberta | Canada | inactive |
| Castro Marim Golfe and Country Club | Castro Marim | Algarve |  Portugal | inactive |
| Castro Marim Golfe and Country Club | Castro Marim | Algarve | Portugal | Active |
| Castropol Golf | Castropol | Asturias |  Spain | inactive |
| Caswell Pines Golf Club | Yanceyville | North Carolina | United States of America | inactive |
| Catalina Country Club | Batemans Bay | New South Wales | Australia | inactive |
| Catalina Island Golf Club | Avalon | California | United States of America | inactive |
| Catalonia Cabeza De Toro | Bavaro | La Altagracia |  Dominican Republic | inactive |
| Catalonia Caribe Club | Bavaro | La Altagracia | Dominican Republic | inactive |
| Catamount Golf Club | Williston | Vermont | United States of America | inactive |
| Catamount Ranch & Club | Steamboat Springs | Colorado | United States of America | inactive |
| Cataraqui Golf & Country Club | Kingston | Ontario | Canada | inactive |
| Catatonk Golf Club | Candor | New York | United States of America | inactive |
| Catawba Country Club | Newton | North Carolina | United States of America | inactive |
| Catawba Creek Golf Course | Gastonia | North Carolina | United States of America | inactive |
| Catawba Island Club | Port Clinton | Ohio | United States of America | inactive |
| Cateechee Golf Club | Hartwell | Georgia | United States of America | inactive |
| Cathcart Castle Golf Club | Clarkston | East Renfrewshire | Scotland | inactive |
| Cathedral | Swindon | Wiltshire | England | inactive |
| Cathedral | Chichester | West Sussex | England | inactive |
| Cathedral Canyon Golf Club | Cathedral City | California | United States of America | inactive |
| Cathedral Pines Golf Course | Suring | Wisconsin | United States of America | inactive |
| Cathkin Golf Club | Rutherglen | South Lanarkshire | Scotland | inactive |