The Silk Express is a 1933 American pre-Code drama film directed by Ray Enright and written by Houston Branch and Ben Markson.

[1] Donald Kilgore is determined to take a shipment of silk from Seattle to New York City by rail to break a monopoly set up by gangster Wallace Myton.

When Kilgore's secretary is found murdered in a sealed railroad car, Detective McDuff sees a chance to finally make a name for himself and insists the train remain where it is until he solves the crime.

The killer and his accomplice draw their guns, but "tramp" Rusty Griffith turns out to be a Lloyd's of London undercover investigator and bluffs them into surrendering their weapons.

Mordaunt Hall of The New York Times praised Enright's direction, characterizing the film as "neatly measured and nicely balanced", as well as the cast's acting.