John Singer

John Singer may refer to:


 * Seymour Jonathan Singer (1924–2017), cell biologist and author
 * John Singer (homeschooler) (1931–1979), American killed in a standoff over homeschooling
 * John Singer (actor) (1923–1987), English actor
 * John Webb Singer (1819–1904), British businessman
 * John Singer, a mute character in Carson McCullers' novel The Heart Is a Lonely Hunter (1940)