Kannon Kumar Shanmugam (born November 15, 1972) is an American lawyer known for his litigation at the U.S. Supreme Court.

[3] Shanmugam joined Paul, Weiss in 2019 in a highly publicized move from Williams & Connolly, where he was head of the firm's Supreme Court and appellate practice.

[5] His father, Kumarasamy "Sam" Shanmugam, was a professor of electrical engineering at the University of Kansas for over 30 years.

He won a Marshall Scholarship and spent the next two years in England doing graduate study in classics at Keble College, Oxford, receiving a Master of Letters degree in 1995.

Shanmugam then entered private practice as an associate at the law firm of Kirkland & Ellis, where he worked for noted lawyer and judge Kenneth Starr.