Anna Stefanie Nanna Fryland Clausen (1 April 1900 – 2 August 1981) was a Danish diver. She was a gold medalist at the 1920 Summer Olympics.
Clausen was born on 1 April 1900, the second of four children, and she grew up with her family in Vesterbro, Denmark. In 1915, she joined the Women's Sports Association, and soon began competing in swimming and diving competitions.
At the 1920 Summer Olympics, Clausen won the gold medal in the 10 metre platform competition.
List of members of the International Swimming Hall of Fame
Stefanie Clausen at the International Swimming Hall of Fame
Stefanie Clausen at Olympics at Sports-Reference.com (archived)