Starting in 2021, a false rumor alleged that certain North American schools were providing litter boxes in bathrooms for students who "identify as cats", or who participate in the furry or otherkin subcultures. Various American conservative and right-wing politicians and media personalities promoted the hoax in response to several school districts enacting protections for transgender students. Many news outlets, fact-checking websites, and academic researchers have debunked such claims, and officials from every school named by those promoting the hoax have verified that the accusations are false. The claims have been described as internet trolling, fearmongering, and anti-transgender rhetoric.

A litter box, also known as a sandbox, cat box, litter tray, cat pan, potty, pot or litter pan, is an indoor feces and urine collection box for cats, as well as rabbits, ferrets, miniature pigs, small dogs, and other pets that instinctively or through training will make use of such a repository. They are provided for pets that are permitted free roam of a home but who cannot or do not always go outside to excrete their metabolic waste.