21 ore a Monaco
- Anno: 1976
- Nazione: United States of America
- Genere: Dramma, Thriller
- Studio: Moonlight Productions, Filmways Television
- Parola chiave: hotel, airport, sports, hostage, olympic games, 1970s, munich, germany, olympian village, israeli defense force, hostage negotiator, west germany, olympics, black september
- Direttore: William A. Graham
- Cast: William Holden, Shirley Knight, Franco Nero, Anthony Quayle, Richard Basehart, Noel Willman