South Bay may refer to:
Antarctica
editCanada
editHong Kong
edit- South Bay, Hong Kong, on Hong Kong Island
- Nam Wan ("South Bay"), on Tsing Yi Island, New Territories
- Tai Nam Wan ("Great South Bay"), on Tsing Yi Island, New Territories
Macau
edit- Nam Van ("South Bay"), on the Macau Peninsula, a former bay turned into an artificial lake
Taiwan
edit- South Bay (Taiwan) on Henchun Township, Pingtung County
United States
editCalifornia
edit- South Bay (San Francisco Bay Area), a region in northern California
- South Bay (Los Angeles County), a region in southern California
- South Bay (San Diego County), another region in southern California
- South Bay (now Fields Landing, California), a census-designated place in Humboldt County
Florida
edit- South Bay, Florida, a city
Massachusetts
edit- South Bay Interchange, Boston, a cancelled development
- South Bay, Dorchester, Boston, Massachusetts
New York
edit- South Bay, New York
- Great South Bay, on Long Island
- Lower South Bay, New York, also called South Bay
Texas
edit- South Bay (Texas), a bay in the Laguna Madre