Henry Patten (born 6 May 1996) is a British professional tennis player who specialises in doubles. He has been ranked by the ATP as high as world No. 3 in doubles, achieved on 27 January 2025. Patten is a two-time Grand Slam champion in doubles, having won the 2024 Wimbledon Championships and the 2025 Australian Open with Harri Heliövaara.

He has won six career doubles titles on the ATP Tour and also 13 ATP Challenger titles, 11 with Julian Cash. Ten of the titles came in 2022, a record for the most Challenger doubles titles accrued in a single season.

He also attained his career-high singles ranking of world No. 462 in September 2022.

Patten was born on 6 May 1996 in Manningtree, Essex, England. He attended Ipswich School and Culford School, before he enrolled at the University of North Carolina at Asheville, where he played collegiate tennis. He continued his postgraduate studies at Durham University (2019–2020). During two of his university summer breaks, he worked for IBM as a courtside statistician at Wimbledon.

Patten is a member of the Roehampton Club. He is also a chess enthusiast, often playing the game while on tour.

While at UNC Asheville, Patten became the No. 1 ranked NCAA doubles player and placed as high as No. 32 in singles. In 2018 he was the first player in the history of his program to be selected for the singles draw of the NCAA Men's Tennis Championships. At Durham he finished runner-up with Josip Krstanovic to fellow Durham students Julius Tverijonas and Or Ram-Harel in the 2019 BUCS Men's Doubles Championship.

Patten won ten titles in 2022, breaking the record for most Challenger doubles titles in a single season with Julian Cash.

Patten partnering with Julian Cash reached his first ATP final at the 2023 U.S. Men's Clay Court Championships, losing to Jordan Thompson and Max Purcell in a deciding champions tiebreak. He reached the top 50 on 22 May 2023.^{[citation needed]}