SpongeBob's heart is an organ that first appears in the episode "Squid on Strike."


Whenever portrayed with sentience, the heart is light pink with black pupils and pink eyelids.

Role in series

The has displayed signs of sentience in the episodes "Stuck in the Wringer" and "Kenny the Cat."

It first appears in "Squid on Strike" when SpongeBob's body is attached to the Krusty Krab doors, not wanting to quit his job. Squidward tries to get him to knock it off by attempting to remove him, which at one point removes his face and reveals his skeleton and internal organs, including his heart.

SpongeBob's heart is briefly shown about to beat out of his chest in "Krusty Krab Training Video" towards the end when the narrator is about to reveal the Krabby Patty secret formula.

In "Have You Seen This Snail?," SpongeBob's heart is shown beating like a metronome during the song montage of "Gary Come Home," matching with the lyric "Now my heart is beating like the saddest metronome."

In "Le Big Switch," SpongeBob briefly removes his heart from his chest to season Dale's coral bits with love.

In "Grooming Gary," SpongeBob briefly transports his head inside his body and sees a Gary-themed trophy next to his beating heart.

In "The Inside Job," Plankton, inside SpongeBob's body to easily get the formula, goes to his heart and connects the plungers on his head to it to get a better chance at hearing the formula be revealed.

In "InSPONGEiac," SpongeBob's heart is shown beating fastly as he develops a serious case of imsomnia.

In "Krabby Patty Creature Feature," it appears when SpongeBob screams on his tongue.

In "The Grill is Gone," he states that he has a heart of a kid.

In "SpongeBob's Big Birthday Blowout," SpongeBob's skeleton is revealed, once again revealing his heart.


  • It makes the most appearances in season 7, with a total of three.

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