Sid Goodwin (1914–1980) was an Australian rugby league footballer who played in the 1930s and 1940s.

In 1939 Goodwin was the premiership's top try-scorer and also captained the Balmain side that won the 1939 Grand Final.

By the time he left Balmain he'd set the club's records for most tries in a season and most career tries.

After moving to Newtown in 1943, Goodwin enjoyed further premiership success in NSWRFL season 1943, scoring a double in that year's Grand Final.

In 1944 he again played for Newtown in the Grand Final, but failed to win against his old club, Balmain.