Steve Southern (born 29 April 1982) is an Australian former professional rugby league footballer who played as a second-row and lock forward in the 2000s and 2010s.

Born in Wollongong, New South Wales, Southern played his junior football for Dapto before being signed by the St. George Illawarra Dragons.

In 2005, Southern played at second-row in the Cowboys' 2005 NRL Grand Final loss to the Wests Tigers.

In September 2010, after playing over 120 games for the Cowboys, Southern signed a 1-year contract with the Newcastle Knights starting in 2011.

[3] In August 2011, Southern signed a 3-year contract with Super League team, Wakefield Trinity Wildcats, in a deal that would see him captain the club.