| "Jack" may be referring to two or more different characters. If you're uncertain which one you're looking for, just flip a coin.|
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Jack is a conman name in fiction.
Jack may refer to:
- Jack (webcomic) - the main character of the furry webcomic Jack and a ripoff of Spawn
- Jack Sparrow - main character of the Pirates of the Caribbean franchise
- Quackerjack - one of Darkwing Duck's main enemies who is often called Jack
- Joker - sometimes uses the alias "Jack White"
- Jack Skellington - main protagonist of Tim Burton's classic The Nightmare Before Christmas
- Jack (Tekken) - a character from the fighting game series Tekken