Alexis Noel Thompson is an American professional golfer who plays on the LPGA Tour. At age 12, she was the youngest golfer ever to qualify to play in the U.S. Women's Open. She turned professional in June 2010 at age 15. On September 18, 2011, Thompson set a then new record as the youngest-ever winner of an LPGA tournament, at age 16 years, seven months, and eight days, when she won the Navistar LPGA Classic. Three months later she became the second-youngest winner of a Ladies European Tour event, capturing the Dubai Ladies Masters by four strokes on December 17, 2011. She won her first major championship at the 2014 Kraft Nabisco Championship at the age of 19 years, 1 month and 27 days, making her the second youngest LPGA golfer to win a major.

The Ladies Professional Golf Association (LPGA) is an American organization for female golfers. The organization is headquartered at the LPGA International in Daytona Beach, Florida, and is best known for running the LPGA Tour, a series of weekly golf tournaments for elite women professional golfers from around the world.