Christy Walton

 (born 1955) is the widow of John T. Walton, who was a son of Sam Walton, the founder of Wal-Mart. After John's death in June 2005, she inherited his fortune of $15.7 billion.

As of 2011, she is the 4th richest person in the United States according to Forbes Magazine and the 10th richest person in the world, as well as the richest woman in the world. As of March 2011, she had an estimated net worth of US$26.5 billion, the bulk of which comes from her shares in Wal-Mart, but also from First Solar, in which her late husband invested. She currently resides in Jackson, Wyoming and has one son, Lukas.

Additionally, she supports her family's own charitable foundation, the Walton Family Charitable Support Foundation, which prioritizes education and benefits colleges such as the University of Arkansas, the College of Business Administration of the University of Arkansas, and several other colleges, community trusts, universities and foundations. In 2007, her family's foundation donated as much as $1.6 billion.