Margareta Arvidsson is a Swedish actress, fashion model and beauty queen who was crowned as the 1966 Miss Universe at age 18. She represented Vänersborg in the 1966 Miss Sweden Pageant. She was the second Swedish to win the crown, 11 years after Hillevi Rombin.

The Miss Sweden or Miss Universe Sweden, is the title of the Swedish beauty pageant, qualifying delegates to the Miss Universe competition. In 2009 the pageant renamed as Miss Universe Sweden and the first national final was held on 6 June 2009, the National Day of Sweden. Among the judges were Yvonne Ryding, Miss Universe 1984. The pageant is a late branch of the Miss Sweden contest. The director of the contest is Joakim Granberg of the Starworld Entertainment Corporation.