Anita Rosa Zarnowiecki (born 26 May 1954) is a Swedish freestyle and medley swimmer who won a bronze medal in the 4 × 100 m freestyle relay at the 1970 European Aquatics Championships.

[1] She competed at the 1972 Summer Olympics in four events and finished sixth and eighth in the 4 × 100 m freestyle and medley relays, respectively.

At 19 years of age, she won seven gold medals, including the 100 m backstroke, the 400 m freestyle, and the 200 m individual medley, surpassing the record of five medals set by American swimmer Mark Spitz in 1969, and a silver medal in the 800 m freestyle.

[4][5][6][7] Her twin brother, Bernt Zarnowiecki, also competed in freestyle swimming at the 1972 Summer Olympics, and in the 1973 Maccabiah Games.

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