|Ron Ainsworth, back row, 2nd from left, in the 1946 St. George team.
|As of February 2011
Ron Ainsworth was an Australian rugby league player for the St. George club of the New South Wales Rugby Football League (NSWRFL).
Ainsworth was born in Sydney, New South Wales. He played four first-grade games for Saints during the 1946 NSWRFL season. Ainsworth scored one try in first grade, on 17 August 1946 at North Sydney Oval where St. George defeated North Sydney 32–15. St. George went on win the minor premiership and appear in the 1946 Premiership Final but Ainsworth did not play that day.