Southern Cross is the usual name of Crux, a constellation visible in the Southern Hemisphere.
Other meanings of Southern Cross include:
- the blue saltire as used in various flags of the Confederate States of America in the American Civil War
- the Southern Cross Cable, a submarine communications cable connecting New Zealand, Australia, Fiji, Hawaii, Oregon and California
- Southern Cross University [1] in New South Wales, Australia
- Southern Cross Astronomical Society [1] in Florida
- Southern Cross Bioethics Institute [1] in South Australia
- Southern Cross Healthcare [1] in New Zealand