Il Mostro
Il Mostro (Italian for "the monster") is a nickname given to the Monster of Florence, an Italian serial killer active in the 1970s.
Il Mostro may also refer to:
- Il mostro (1977 film), an Italian thriller film directed by Luigi Zampa
- Il mostro (1994 film), an Italian comedy film directed by Roberto Benigni
- Il mostro (miniseries), an Italian miniseries directed by Stefano Sollima
- Il mostro, a yacht participating in the 2008–2009 Volvo Ocean Race