Jack-o'-lantern (disambiguation)

A jack-o'-lantern is a carved pumpkin.

The name also may mean:
in English folklore, an alternative term for  Will-o'-the-wisp or ignis fatuus, an unearthly light which attracts travellers
in Irish folklore, an alternative term for Stingy Jack.
in American English, jack-o'-lantern, a decoratively carved and internally lit pumpkin or turnip, named after the role of such vegetables in folklore tales about such lights
 The Omphalotus olearius mushroom
 Dartmouth Jack-O-Lantern magazine  
 Jack O'Lantern (DC Comics), several DC Comics superheroes
 Jack O'Lantern (Marvel Comics), several Marvel Comics supervillains