The Nut is a 1921 American silent film comedy directed by Theodore Reed.

Fairbanks biographer Jeffrey Vance writes, "Admittedly a minor work, The Nut is frequently dismissed in critical assessments of Fairbanks's career. This is unfortunate, for it contains some fascinating sequences and reveals much about the actor-producer's state of mind at the time it was made." Vance also notes, "The picture is like a chaotic funhouse, filled with magical masquerades, illusions, and gimmicks of great momentary amusement."