Donald J. Walchuk (born March 6, 1963, in Melville, Saskatchewan) is a Canadian curler from Edmonton, Alberta.

On Martin's rink, Walchuk was known especially for his "high heat" - his big-weight takeout shots.

With Martin, he won the Brier in 1997, an Olympic silver medal in 2002, Canada Cup's in 2005 and 2006 and four Alberta provincial championships.

The foursome was rounded out by Richard Daneault (second) and Garth Smith (lead).

In 2010, Walchuk left the Burtnyk rink to form his own team with Chris Schille, D. J. Kidby and Don Bartlett.