The Sealed Envelope
- Anno: 1919
- Nazione: United States of America
- Genere: Mistero, Dramma
- Studio: Universal Film Manufacturing Company, Bluebird Photoplays
- Parola chiave:
- Direttore: Douglas Gerrard
- Cast: Fritzi Brunette, William Sheer, Joseph W. Girard, Charles Dorian, Catherine Wallace, Ogden Crane