"You Have 0 Friends" is the fourth episode of the 14th season of the American animated television series South Park, and the 199th episode of the series overall. It first aired on Comedy Central in the United States on April 7, 2010. In the episode, Kyle Broflovski, Eric Cartman and Kenny McCormick make Stan Marsh a profile on the social networking service Facebook against his wishes, and he becomes extremely frustrated with everyone asking him for friend requests. After he gets fed up with Facebook, Stan tries to delete his profile but is sucked into a virtual Facebook world. Meanwhile, Kyle starts trying to find ways to get more friends on Facebook after he drastically starts losing them due to his befriending of a third-grade friendless Facebook user, whom everyone considers a loser.

Stanley "Stan" Marsh is a fictional character in the adult animated television series South Park. He is voiced by and loosely based on series co-creator Trey Parker. Stan is one of the series' four central characters, along with Kyle Broflovski, Eric Cartman, and Kenny McCormick. He debuted on television when South Park first aired on August 13, 1997, after having first appeared in The Spirit of Christmas shorts created by Parker and long-time collaborator Matt Stone in 1992 and 1995.