James Henry McManus (September 16, 1940 – January 18, 2011) was an American tennis player who reached the semifinals of the US Open men's doubles in 1968.

McManus was married to his wife Carole for more than 30 years and had two children, Kate and Jordy.

[3] He and Bill Hoogs Jr. were runners-up in doubles to Allen Fox and Larry Nagler at the Ojai Tennis Tournament in 1961.

[3] In 2010, he published Tennis History: Professional Tournaments – Winners & Runner-Ups.

[5] In 2015, the ATP launched the Jim McManus Memorial Fund in his honor.