David Colin McKenzie (born 3 September 1970) is a British track and field athlete who won the gold medal in the 4 x 400 metres relay at the 1994 Commonwealth Games held in Victoria, British Columbia, Canada, along with teammates, Peter Crampton, Adrian Patrick, and Du'aine Ladejo.

He reached his all-time peak on 12 June 1994 when he ran 45.47s at Sheffield for Shaftesbury Barnet Harriers.

[1] This earned him a solid place in the England team for the 1994 Commonwealth Games in Victoria, British Columbia.

At those games he was part of the 4x400 metres relay team that took gold (along with Peter Crampton, Adrian Patrick, and Du'aine Ladejo with Mark Smith and Alex Fugallo in earlier rounds).

McKenzie was to also feature in the season ending World Cup at Crystal Palace again winning gold in the 4 x 400 metres relay with teammates Du'aine Ladejo, Jamie Baulch and Roger Black.