Patty Schnyder (born 14 December 1978) is a Swiss retired tennis player. A former top 10 player in singles, she twice defeated a reigning world No. 1 player in her career: Martina Hingis at the 1998 Grand Slam Cup (by retirement) and Jennifer Capriati at the Family Circle Cup in 2002. In addition, she has notable wins over such former No. 1 players as Lindsay Davenport, Serena Williams, Arantxa Sánchez Vicario, Steffi Graf, Kim Clijsters, Justine Henin, Amélie Mauresmo, Maria Sharapova, Jelena Janković, Ana Ivanovic, and Caroline Wozniacki.