John Sylvester

John Sylvester may refer to:


 * John Sylvester (admiral) (1904–1990), United States Navy admiral
 * John Sylvester (American football) (1923–2012), halfback who played in the All-America Football Conference
 * John Sylvester (cricketer) (born 1969), Grenadian cricketer
 * John N. Sylvester (1909–1993), American politician in the state of Washington
 * John B. Sylvester, United States Army general
 * Johnny Sylvester (1915–1990), American businessman associated with Babe Ruth
 * John Sylvester, one of the pen names of British author Hector Hawton (1901–1975)