David Troy Palmer OAM (born 28 June 1976 in Lithgow, New South Wales) is an Australian retired professional squash player.

At the 2018 Commonwealth Games, Palmer won a Gold Medal with partner Zac Alexander in the men's doubles.

At the 2006 Commonwealth Games, Palmer won a men's singles Silver Medal after losing in the final to England's Peter Nicol.

Following the 2004 World Doubles Squash Championships in Chennai, India, he was banned from playing in events run by the World Squash Federation (WSF) for 13 months after a disciplinary panel found him guilty of verbally abusing the referee.

Palmer now leads both the men's and women's squash team at Cornell University in Ithaca, New York.