The third season of South Park, an American animated television comedy series, aired on Comedy Central from April 7, 1999, to January 12, 2000. The season was headed by series creators Trey Parker and Matt Stone, who also served as executive producers along with Anne Garefino. The season continued to focus on the exploits of protagonists Stan, Kyle, Cartman, and Kenny in the fictional Colorado mountain town of South Park.

South Park is an American animated sitcom created by Trey Parker and Matt Stone and developed by Brian Graden for Comedy Central. The series revolves around four boys—Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormick—and their exploits in and around the titular Colorado town. South Park also features many recurring characters. The series became infamous for its profanity and dark, surreal humor that satirizes a large range of subject matter.