Grant Irvine (born 17 March 1991) is an Australian butterfly swimmer.
He was part of the 4 × 100 m medley team that won a bronze medal at the 2012 FINA World Swimming Championships (25 m).
Two years later he won an individual silver in the 200 m butterfly at the Commonwealth Games.At the 2016 Summer Olympics, Irvine represented Australia in the 200m butterfly.