"My Sister, My Sitter" is the seventeenth episode of the eighth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on March 2, 1997. In the episode, Marge and Homer leave Lisa to babysit Bart and Maggie. Annoyed that his younger sister is his babysitter, Bart does everything he can to annoy her. When Bart is injured, Lisa must find him medical attention without spoiling her reputation as a good babysitter.

The episode was written by Dan Greaney and directed by Jim Reardon. The script was written to focus on the relationship between Bart and Lisa and the episode has further been used to discuss the difficulties in letting children babysit themselves. The episode received mostly positive reviews.