Miroslava "Mirka" Federer (born Miroslava Vavrincová on 1 April 1978, later Miroslava Vavrinec) is a Slovak-born Swiss former professional tennis player. She reached her career-high WTA singles ranking of world No. 76 on 10 September 2001 and a doubles ranking of No. 215 on 24 August 1998. She is the wife of tennis player Roger Federer, having first met him at the 2000 Summer Olympics. She retired from the game in 2002 due to a persistent foot injury. She has since then always been seen on the ATP tour attending her husband's matches.
Born in Bojnice (Slovakia), Miroslava emigrated to Switzerland when she was two years old. In 1987, when she was nine, her father took her to watch a tournament at Filderstadt in Germany. Mirka met Martina Navratilova, who thought she looked athletic and should try tennis. Navratilova later sent her a racquet and arranged for her first tennis lesson.
In 2002, she teamed up with Roger Federer in the Hopman Cup. Her best Grand Slam performance was in 2001, when she reached the third round of the US Open.