Jack Horner
Jack Horner may refer to:
People
- Jack Horner (activist), Australian author and activist in the Aboriginal-Australian Fellowship
- Jack Horner (baseball), American professional baseball player
- Jack Horner (journalist), Minnesota sportscaster
- Jack Horner (paleontologist), American paleontologist
- Jack Horner (politician), member of the Canadian House of Commons
- Jack B. Horner, Pennsylvania politician
Fictional characters
- the title character of "Little Jack Horner", a nursery rhyme
- "Big" Jack Horner, the main antagonist of the animated film Puss in Boots: The Last Wish
- Jack Horner, the porn director in the 1997 film Boogie Nights
- Jack Horner (comics), from the comic book ''Fables''
Animals
- Jack Horner (racehorse), 1926 Grand National winning horse