Clayton Utz is an independent, top-tier Australian law firm headquartered in Sydney, Australia. Established in 1833, it is generally considered a leading law firm, and has been known as one of the "Big Six" Australian law firms. The firm is recognised for its strong litigation practice, government clients, pro bono services and high-profile alumni. In 2013, the firm had an annual revenue of $436 million. As of 2021 it had 179 partners and 1,600 personnel in six offices.