Mademoiselle is a fictional character of the radio show The Time Ranger. She is a shrill aristocratic woman that the Time Ranger meets when he ends up in a stable after travelling to France during its revolutionary period. Her obsession with the phrase "off with your head" implies that she could be a caricature of Marie Antoinette. The episode ends on a suspenseful note, with the Time Ranger engaging in mammary intercourse with the Mademoiselle as the rebelling peasants try to charge the door of the stable.
Mademoiselle was voiced by Jen Cohn.