The Lost Letter or A Lost Letter may refer to:
* The Lost Letter: A Tale Told by the Sexton of the N...Church, a tale from the collection ''Evenings on a Farm Near Dikanka'' by Nikolai Gogol
* The Lost Letter (1945 film), ''The Lost Letter'' (1945 film), a Soviet animated film
* The Lost Letter (1972 film), ''The Lost Letter'' (1972 film), a Soviet musical-tragicomedy film
* A Lost Letter (film), ''A Lost Letter'' (1953 film), a Romanian historical comedy film
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