Barbara Rittner (born 25 April 1973) is a former professional tennis player who comes from Germany. Her career high ranking was No. 24 in the world, a ranking she achieved on 1 February 1993. She currently is the captain of the German Fed Cup team.
As a junior, she won the 1991 Wimbledon Championships. She won her first WTA Tour title in 1992, and almost nine years later she won her second at the Belgian Open in Antwerp. This marked the second longest time between singles titles in the Open Era (behind Marcie Louie, who captured her second title 9 and half years after her first one). She also has three doubles titles with three different partners.
She reached the fourth round of a Grand Slam twice in her professional career. Once at the French Open in 1996 and again at the Australian Open in 2001. Her best performances at Wimbledon and the U.S. Open are the third round in both.