Sandra Völker (born 1 April 1974) is a retired freestyle and backstroke swimmer from Germany, former world record holder in 50 metres backstroke.

She was also multiple World and European champion, in both Long and Short Course Championships.

Völker won a total number of three (one silver, two bronze) medals at the 1996 Summer Olympics in Atlanta, United States.

Völker competed in four Olympics, making her debut in Barcelona, Spain in 1992.

This article about a swimming Olympic medalist for Germany is a stub.