Samuel Robson "Rob" Walton is an American billionaire heir to the fortune of Walmart, the world's largest retailer. He is the eldest son of Helen Walton and Sam Walton, and was chairman of Walmart from 1992 to 2015. As of November 2023, Walton had an estimated net worth of US$72 billion, making him the 16th richest person in the world. He is also the principal owner of the Denver Broncos.

Helen Robson Walton (December 3, 1919 – April 19, 2007) was an American philanthropist and prominent arts advocate, dedicated to her community in Bentonville, Arkansas where she instituted a committee for a national museum of arts. After 31 years of activity, the Arkansas Committee on the National Museum for Women in the Arts is the longest standing committee in the state. She was also the wife of Walmart and Sam's Club founder Sam Walton. At one point in her life, she was the richest American and the eleventh-richest woman in the world.