Margareta Arvidsson (born 12 August 1947) is a Swedish actress, fashion model and beauty queen who was crowned as the 1966 Miss Universe (not 21 years old, as erroneously reported by bad sources). She represented Vnersborg in the 1966 Miss Sweden Pageant. She was the second Swedish beauty to win the crown, 11 years after Hillevi Rombin.
Margareta also won the Miss Photogenic title at the 15th Annual Miss Universe Pageant which was held in Miami Beach, Florida, culminating with her crowning on 16 July 1966.