Atthaya Thitikul is a Thai professional golfer who plays on the U.S.-based LPGA Tour and the Ladies European Tour. Until 2023, she was the youngest golfer ever to win a professional golf tournament at aged 14 years, 4 months and 19 days after winning the Ladies European Thailand Championship as an amateur on 9 July 2017. She was the number one ranked women's amateur golfer in the world for a total of 12 weeks, rising to the top on two occasions, the first time on 26 June 2019.

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.