The 1991 du Maurier Classic was contested from September 12–15 at Vancouver Golf Club. It was the 19th edition of the du Maurier Classic, and the 13th edition as a major championship on the LPGA Tour.
This event was won by Nancy Scranton.
Coordinates: 49°15′04″N 122°52′39″W / 49.251136°N 122.877497°W