RCGC may refer to:

• Rowan College at Gloucester County, located in Sewell, New Jersey, United States
• Royal Calcutta Golf Club, the oldest golf club in India and the first outside Great Britain
• Royal Canberra Golf Club, a golf club in Yarralumla, Australian Capital Territory

• Half-Moon Friends
• Half Moon Lake (Berrien County, Michigan)
• Half Moon Lake (disambiguation)
• Half Moon Party
• Half Moon Pond
• Half Moon Pond State Park
• Half Moon State Park
• Half Moon Street (disambiguation)
• Half-moon wattle
• Half-mutant
• Half-night stand
• Half-normal saline
• Half Note (album)
• Half note (disambiguation)
• Half oblate octahedrille
• Half of a Prayer Bead with the Lamentation
• Half of Heaven
• Half of Your Heart
• Half-Opened Windows
• Half Orc
• Halford, Charles
• Halford discography
• Halford Edward Luccock
• Halford E. Luccock
• Halford-Hayner Farmstead