Sly or Slye is the surname of:

People:

  • Allan Sly (born 1951), sculptor
  • Allan Sly (mathematician), probability theorist and MacArthur Fellow
  • Darryl Sly (1939–2007), Canadian National Hockey League player
  • Damon Slye (born 1962), computer game designer, director and programmer
  • Harold Sly (1904–1996), English professional association football player
  • James Calvin Sly (1807–1864), Mormon pioneer, scout, settler and missionary
  • Leonard Slye, birth name of Roy Rogers (1911–1998), America singer and actor
  • Maud Slye (1879–1954), American pathologist
  • Philippe Sly, Canadian singer
  • Richard Meares Sly (1849–1929), Australian judge
  • Tony Sly (1970–2012), American singer, songwriter and guitarist, best known as the frontman of the punk rock band No Use for a Name
  • William Sly (died 1608), Elizabethan actor and colleague of William Shakespeare

Fictional characters: