Jacques Marie Stanislas Jean Brugnon (11 May 1895 – 20 March 1978), nicknamed "Toto", was a French tennis player, one of the famous "Four Musketeers" from France who dominated tennis in the late 1920s and early 1930s.

Additionally he won two mixed doubles titles at Roland Garros partnering Suzanne Lenglen.

He played in 20 Wimbledon Championships between 1920 and 1948 and achieved his best singles result in 1926 when he reached the semifinals, losing in a close five-set match to Howard Kinsey.

[4] Between 1921 and 1934, he played 31 times for the French Davis Cup team, mainly as a doubles player, compiling a record of 26 wins versus 11 losses.

[2] The Four Musketeers were inducted simultaneously into the International Tennis Hall of Fame in Newport, Rhode Island, in 1976.