Malcolm John Mackenzie (born 30 September 1961) is an English professional golfer.

He turned professional in 1980 and has spent most of his career playing on the European Tour.

In late 2003, he underwent shoulder surgery and has struggled to recover his form.

His last full season on tour was 2005, when he made just three cuts and finished well outside the top 200 on the Order of Merit.

In 2006, he became the 4th player to make 600 appearances on the European Tour when he teed it up at the BMW International Open.