David Changleng (born 25 April 1970) is a Scottish rugby union referee.
He is the identical twin brother of fellow referee Malcolm Changleng.
Changleng began his rugby career as a player with Gala RFC, playing at fly-half in a team that included Gregor Townsend and Chris Paterson.
[1] He took charge of his first Heineken Cup match three years later for the Leicester Tigers' 37–6 win over Calvisano in the pool stage of the 2004–05 tournament.
After retiring as a player, Changleng became a PE teacher at Peebles High School.