A [[PrintLongRunners long-running]] NewspaperComic begun in 1973 by George Gately. He helmed it until his 2001 death, when his nephew, Peter took over. The strip's title character is a fat orange cat owned by the Nutmeg family an elderly woman, her husband, and their grandson Iggy. Not unlike ''ComicStrip/{{Garfield}}'', Heathcliff is a wisecracking, fat, orange cat who gets into all sorts of mischief.

The strip is also notable in that it had ''two'' cartoons based on it. The first, in 1980, was produced by Creator/RubySpears and (in the second season) was paired up with an animated adaptation of ''ComicStrip/{{Marmaduke}}''. The second and more familiar one, produced by Creator/DICEntertainment, came in 1984, paired with the ''Catillac Cats''. Heathcliff became renowned as one of iconic voice actor {{Creator/Mel Blanc}}'s final original roles, voicing him in both cartoons.

A film adaptation was planned for 2011 but never got off the ground.

For more information on the second cartoon, see ''WesternAnimation/HeathcliffAndTheCatillacCats''.

!Tropes present in the strip:
* AnimatedAdaptation: Twice.
* TheAnticipator: PlayedForLaughs where a mouse is able to sneak past a sleeping Heathcliff with ease, before getting hit with a {{rolling pin|Of Doom}} by his wife who then tells him, "Sneak by Heathcliff, but you won't sneak by me!"
* ComicBookAdaptation: 1985 to 1991 through Creator/MarvelComics, beating ''ComicStrip/{{Garfield}}'' by 27 years.
* CoolCat
* DogsAreDumb: Played into the ground.
* FatCat
* FollowTheLeader: Hmm. A fat, lazy, cantankerous orange cat... [[ComicStrip/{{Garfield}} Where would that same idea later show up...]] You don't suppose the insanely iconic ''Garfield'' would honestly fall under Follow the Leader, would you?
** Brought up during the segment "Cat Court" on ''WesternAnimation/RobotChicken'', when he takes Garfield to court for ripping him off.
-->'''Heathcliff:''' I was in the funny papers ''five years'' before this lame knockoff!
* MakesJustAsMuchSenseInContext: [[http://heathcliff.wikia.com/wiki/Garbage_Ape Garbage Ape]] shows up to Heathcliff's delight and knocks over the neighborhood trash cans. He makes regular appearances, with no more explanation than that. Oh, and he has a sidekick: Trash Chimp.
* PrintLongRunners: 1973 and counting.
* RunningGag: Heathcliff loved to torment the milkman, the ''garbage'' man and the owner of the fish market in particular.
* TheSpeechless: This is how the casual reader can tell the difference between Heathcliff and [[ComicStrip/{{Garfield}} the other guy]]. Heathcliff understands language but never actually says anything. Notable in that there are talking animals in the strip, e.g. birds and mice. Curiously both cartoons subvert this by making Heathcliff even more of a mouthy wise guy than the latter (quips provided by none other than Creator/MelBlanc).
* SphereEyes
* ThoseTwoGuys: An awful lot of the comics seem to follow the same formula of Heathcliff doing something strange, and two random people in the background explaining what he's doing.