Patty Schnyder (born 14 December 1978) is a Swiss professional tennis player. She reached number 7 in the world rankings. She twice defeated a reigning world no. 1 player in her career: Martina Hingis at the 1998 Grand Slam Cup and Jennifer Capriati at the 2002 Family Circle Cup. In addition, she defeated former number 1s Lindsay Davenport, Serena Williams, Arantxa Sánchez Vicario, Steffi Graf, Kim Clijsters, Justine Henin, Amélie Mauresmo, Maria Sharapova, Jelena Janković, Ana Ivanovic and Caroline Wozniacki.
During her career she reached six Grand Slam singles quarterfinals and one Grand Slam singles semifinal. She won 11 WTA singles titles and 5 WTA doubles titles and earned over $8.4 million in prize money.