The ninth season of South Park, an American animated television series created by Trey Parker and Matt Stone, began airing on March 9, 2005.

The ninth season concluded after 14 episodes on December 7, 2005.

All of the episodes in the ninth season were written and directed by Trey Parker.

Kenny is left in a persistent vegetative state, beginning a war between Cartman, who wants him to die so he can inherit his Sony PSP, Heaven, who needs his spirit to fight a war against hell, and Stan and Kyle, who feel he should be kept alive.