Quasimodo (from Quasimodo Sunday) is a fictional character and the main protagonist of the novel The Hunchback of Notre-Dame (1831) by Victor Hugo. Quasimodo was born with a hunchback and feared by the townspeople as a sort of monster, but he finds sanctuary in an unlikely love that is fulfilled only in death.

The role of Quasimodo has been played by many actors in film and stage adaptations, including Lon Chaney (1923), Charles Laughton (1939), Anthony Quinn (1956), and Anthony Hopkins (1982) as well as Tom Hulce in the 1996 Disney animated adaptation, and most recently Angelo Del Vecchio in the Notre Dame de Paris revival. In 2010, a British researcher found evidence suggesting there was a real-life hunchbacked stone carver who worked at Notre Dame during the same period Victor Hugo was writing the novel and they may have even known each other.