Sandra Klemenschits (born 13 November 1982) is an Austrian former professional tennis player.

[1][2] Klemenschits announced that the 2016 Generali Ladies Linz would be her last tournament before her retirement from professional tennis.

Partnering with Romina Oprandi, she made it to the second round of Wimbledon, her farthest appearance in a Grand Slam tournament.

After Wimbledon, Klemenschits had great success on the European clay with her regular partner of that year, Andreja Klepač.

In January 2007 Klemenschits and her twin sister Daniela with whom she was regularly playing doubles were diagnosed with a rare form of abdominal cancer, squamous cell carcinoma, forcing them to retire.