The baby in Dirty Dancing, whose real name is Frances "Baby" Houseman, was 17 years old according to clues in the movie. The story is set in the summer of 1963, and Baby narrates that summer, stating plans consistent with being 17, such as going to college and joining the Peace Corps. Johnny Castle, her dance partner, is 25 years old, making their age difference 8 years. The movie does not explicitly state their ages but evidence from the dialogue and background points to Baby being 17 during the events depicted.
