Ailsa Craig is a town in western Ontario on the Ausable River. Ailsa Craig is in the Municipality of North Middlesex , in the County of Middlesex. It is probably best know for its annual Turtle Races.

• Population (2001): 987.
• Unemplyoment rate (1996): 1.8% ([1]).
• Immigrant population (1996): 8.9% ([2]).