List of St. George Illawarra Dragons seasons

The St. George Illawarra Dragons are a rugby league club jointly based in Kogarah and Wollongong, New South Wales who compete in the National Rugby League. The club was formed on 23 September 1998 by a merger of the St. George Dragons and the Illawarra Steelers and they played their first competitive match in 1999 against the Parramatta Eels, losing 20–10. The club shares home games between Jubilee Oval and Wollongong Showground.

The club have competed in 25 seasons over their history, winning four trophies. These include one premiership (2010), two minor premierships (2009, 2010) and one World Club Challenge (2011). These achievements are listed below in bold.