- In boxing, the term "southpaw" refers to a left-handed fighter, one who fights with his right hand and foot forward while keeping his left hand and foot in the back.
- The term has its origins from the baseball slang of the 1880s. Baseball diamonds were often arranged so the batters would face east to avoid looking into the afternoon sun. The pitcher's left hand, or paw, would therefore be on the southern side, hence the term “southpaw.”
- Another term for a left-handed person is "portsider." It comes from the nautical term "port," which is the left side of a ship.
- Notable boxing southpaws include Marvin Hagler, Pernell Whitaker, Manny Pacquiao, Joe Calzaghe, and Hector Camacho.
- Compare, orthodox stance