Thomas Duff Net Worth

Estimated net worth (2026)

$4.5 billion

Who is Thomas Duff?

Thomas Milton Duff is an American billionaire entrepreneur and philanthropist known for building significant wealth through strategic business ownership. As a co-owner of Southern Tire Mart, which dominates the truck tire market, and Duff Capital Investors, Mississippi holds the largest privately owned business, the Duff brothers have established themselves as major economic forces in the region. With an estimated net worth of $4.1 billion, they rank among the wealthiest individuals in Mississippi. Their success is rooted in their leadership across essential industries, demonstrating a powerful commitment to entrepreneurial achievement and philanthropy.

Known for

Entrepreneur

Wealth from

Tires, diversified

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Net worth figure (2026) sourced from Forbes; biography adapted from Wikipedia. Net worth figures are estimates and may vary by source.