Supertest Ladies Open

{{short description|1960s ladies' professional golf tournament}}

The Supertest Ladies Open was a golf tournament on the LPGA Tour from 1966 to 1969.[http://www.lpga.com/content/Chronology60-69.pdf LPGA Tournament Chronology 1960-1969] It was played in Ontario, Canada at the Sunningdale Golf Club in London from 1966 to 1967 and at the Bayview Golf & Country Club in Thornhill from 1968 to 1969. It was the first LPGA Tour event to be played in Canada. The title sponsor was Supertest Petroleum, a Canadian petroleum company.