David Dower Leech (9 March 1927 – 21 October 2017) was a New Zealand hammer thrower and athletics official.

[2] Leech won his first national hammer throw championship in 1952, with a distance of 142 ft 8 in (43.48 m).

[3][4] At the 1962 British Empire and Commonwealth Games in Perth, Leech represented New Zealand in the hammer throw.

Between 1976 and 2014, he won 20 age-group titles in the hammer throw at New Zealand Masters championships, and he won a world Masters hammer throw bronze medal in the M70 category at the 1997 World Veterans Athletics Championships.

[4] At the 1974 British Commonwealth Games in Christchurch, Carr was a New Zealand's athletics section assistant manager,[7] and two years later he was the athletics section manager for the New Zealand team at the 1976 Summer Olympics in Montreal.