Donald Anthony Nash (born 29 March 1978 in Dubbo, New South Wales) is an Australian first-class cricketer who played for the New South Wales Blues.
A right arm fast medium bowler and hard hitting lower order batsman, Nash made his first class debut in 1999-2000. In his 37-game career he took 99 wickets at 31.06 including two hauls of seven wickets in an innings. With the bat he once scored the second fastest half-century in the history of domestic one-day cricket in Australia.