Character Gallery Grandma SquarePants is the paternal grandmother of SpongeBob SquarePants, Stanley SquarePants, and BlackJack SquarePants, and also the mother-in-law of Margaret SquarePants. She is also married to Grandpa SquarePants, and had SpongeBob's father Harold and his paternal uncles Sherm SquarePants and Blue SquarePants. "Uhh...we got a problem here" This article is a stub. You can help the SpongeBob Galaxy Wiki by expanding it. Retrieved from "https://spongebobgalaxy.fandom.com/wiki/Grandma_SquarePants?oldid=16982" Categories: Stubs Characters Sponges SquarePants Family Bikini Bottomites Female characters Minor characters Community content is available under CC-BY-SA unless otherwise noted.