John Franklyn Mars (born October 15, 1935) is an American businessman and heir.
He is the chairman of Mars, Inc. As of November 2023, Bloomberg Billionaires Index estimated his net worth at US$46.4 billion, ranking him the 24th-richest person in the world (tied with his sister Jacqueline).
[5] As of October 2012, Mars was listed as the 30th-richest person in the world with an estimated net worth of $20.1 billion.
[6] According to the Hurun Global Rich List 2015, he was 28th richest person in the world with a net worth of US$26 billion.
[5] In March 2015, Queen Elizabeth II awarded him an honorary knighthood at Windsor Castle.