Summerlin South
- Country: United States
- State: Nevada
- Population: 24,085 (2010)
- Latitude: 36° 7.5' N (36.12433°)
- Longitude: 115° 19.9' W (-115.33246°)
- Elevation: 881 m/2,891 ft. above sea level
- Time zone: America/Los_Angeles (UTC -08:00); DST observed (UTC -07:00)
- Alternate names: Summerlin South CDP