Melanie Jennings Oudin (born September 23, 1991) is a former American tennis player and former world junior No. 2. She was a member of the American Fed Cup team from 2009 to 2011 and winner of the 2011 US Open mixed doubles title, with fellow American player Jack Sock.
As a 17-year-old in the middle of 2009, Oudin reached the round of 16 of the Wimbledon Championships, followed by a quarterfinal at the US Open six weeks later. She reached a career-high ranking of world No. 31 on April 19, 2010. Oudin retired from tennis on August 18, 2017 citing numerous health issues and injuries.
Oudin, a Marietta, Georgia native, has a twin sister, Katherine, and a younger sister, Christina. Introduced to the sport at the age of seven alongside sister Katherine, it was clear Melanie had a gift. As Melanie continued to improve, her time spent on the court increased as well. In seventh grade, Melanie made the decision to homeschool, giving her more time on the practice courts and an opportunity to play more tournaments. In an article with Atlanta Magazine Oudin said, "If I was going to homeschool, I was going to try to go pro for sure". While the decision proved to be very beneficial for her career, Oudin admits envying her twin sister's experiences at a regular school. She says her idol is Justine Henin because "she proved you don't have to be tall to win things." Her grandmother inspired her and her sister to play tennis when she gave them racquets and lessons when they were young.