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
See also The Monster of Florence (disambiguation) Monster (disambiguation)