David Mustard (born 29 December 1959) is a former professional tennis player from New Zealand.

Mustard played professionally on the Grand Prix tennis circuit during the 1980s and won an ATP Challenger tournament in Sutton in 1984.

[2] His best performance in a Grand Slam tournament came in the 1985 Wimbledon Championships when he made the third round, as a qualifier.

His other Challenger title in doubles came with Russell Simpson, with whom he made the semi-finals at a Cleveland Grand Prix tournament in 1984.

[citation needed] Mustard played in one Davis Cup tie for New Zealand, against Taiwan in Auckland in 1985, which the home side won 5-0.