Steve Wynn net worth: Steve Wynn is an American casino resort/real-estate developer who has a net worth of $2.9 billion. Steve Wynn has earned his net worth by being playing a pivotal role in the resurgence and expansion of the Las Vegas Strip which began to occur in the 1990s. Some of his most notale accomplishments include The Golden Nugget, The Mirage, Treasure Island, The Bellagio, The Wynn, and Encore. These Las Vegas resorts were either refurbished or built by Wynn's companies. Wynn is the one of the richest people in the world and made his debut in the Forbes 400 at #377 with a net worth of $650 million in September 2003. His net worth jumped up to $1.1 billion only six months later. Born in New Haven, Connecticut, his father changed the family's last name in 1946 from "Weinberg" to "Wynn" to avoid anti-Jewish discrimination. Years later it would turn out to be an oddly very appropriate last name for a billionaire casino tycoon.