South Atlantic (disambiguation)
- Atlantic coastal plain
- Dixie League (football)
- Falklands War
- Margate City, New Jersey
- South Atlantic
- South Atlantic (magazine)
- South Atlantic Anomaly
- South Atlantic Conference
- South Atlantic Current
- South Atlantic English
- South Atlantic High
- South Atlantic Intercollegiate Athletic Association
- South Atlantic Intercollegiate Sailing Association
- South Atlantic Invasive Species Project
- South Atlantic Investment Corporation Building
- South Atlantic League
- South Atlantic Medal
- South Atlantic Peace and Cooperation Zone
- South Atlantic Petroleum
- South Atlantic Race
- South Atlantic Squadron
- South Atlantic States
- South Atlantic Station
- South Atlantic convergence zone
- South Atlantic tropical cyclone
- South Caribbean Coast Autonomous Region
- Union blockade
- Vela incident