Smilin' Jack

Smilin' Jack or Smiling Jack may refer to:


 * The Adventures of Smilin' Jack, an American newspaper cartoon strip that ran from 1933 to 1973
 * The Adventures of Smilin' Jack (serial), a film serial based on the cartoon strip
 * Smilin' Jack Smith (1913–2006), an American singer, radio host, and actor
 * John M. Conroy (1920–1979), an American actor, aviator, and businessman, nicknamed "Smiling Jack"
 * John Tait (runner) (1888–1971), a Canadian athlete
 * John F. Wiley (1920–2013), an American football player and coach, nicknamed "Smiling Jack"