Dottie May Frazier (born July 15, 1922) is an American diver, designer, and dive shop owner. Her life is chronicled in her autobiography, Trailblazer: The Extraordinary Life of Diving Pioneer, Dottie Frazier. She was the first female scuba instructor and the first female dive shop owner.
Frazier began teaching freediving in the 1940s. In 1955, Frazier became a certified scuba instructor and was the first woman in the United States to do so. She also created some of the first wetsuit patterns for women. The suits were developed under the name Penguin Suits in conjunction with Frazier's dive shop, Penguin Dive Shop. Penguin was the first female-owned dive shop. After the birth of her third son, Frazier founded Aqua Families, a club of divers who dove with their children.
Frazier has four sons and was married three times.