Peter Reid (born 27 May 1969 in Montreal, Quebec) is a Canadian elite level triathlete.

He has gained fame mainly by winning ten Ironman triathlons, including winning the Ironman World Championship (in Kailua Kona, Hawaii) three times.

During his career as a triathlete Reid lived and trained in Victoria, British Columbia.

In June 2006, Reid announced that he was retiring from triathlon.

He is now a float plane pilot on Canada's west coast.