Alastair Forsyth (born 5 February 1976) is a Scottish professional golfer.
Forsyth was born in Glasgow, Scotland. He was a member of a winning Great Britain & Ireland Jacques Léglise Trophy team in 1994 and he won the 1996 Scottish Amateur Stroke Play Championship.
Forsyth turned professional in 1998. He won the MasterCard Tour Order of Merit in 1999, having won the St Omer Open Championship (not a European Tour event at the time) during the season.