Sandy Cheeks is a fictional character in the American animated comedy television series SpongeBob SquarePants and the Nickelodeon franchise of the same name. She is voiced by Carolyn Lawrence and first appeared in the episode "Tea at the Treedome" that premiered on May 1, 1999. She was created and designed by marine biologist and animator Stephen Hillenburg who is also the creator of the series. Sandy is portrayed as an intelligent anthropomorphic squirrel who wears a diving suit and lives underwater.

SpongeBob SquarePants is an American animated television series created by marine science educator and animator Stephen Hillenburg that aired on Nickelodeon as a sneak peek after the 1999 Kids' Choice Awards on May 1, 1999, and officially premiered on July 17, 1999. It chronicles the adventures of the title character and his aquatic friends in the underwater city of Bikini Bottom. The series received worldwide critical acclaim, and has gained popularity by its second season. As of 2019, the series is the fifth-longest-running American animated series. Its popularity made it a multimedia franchise, the highest rated Nickelodeon series, and the most profitable intellectual property for Paramount Consumer Products. By 2019, it had generated over $13 billion in merchandising revenue.