Sour grapes is an expression originating from the Aesop Fable The Fox and the Grapes, meaning to deny desire for something one cannot attain.

Sour grapes may also refer to:

• Sour Grapes (book), a book of poems by William Carlos Williams
• Sour Grapes, a character from the "Strawberry Shortcake" series
• Sour Grapes (film), a 1998 film written and directed by Larry David
• Sour Grapes (song), a song by English punk band Leatherface
• Sour Grapes: Studies in the Subversion of Rationality (Cambridge, 1983), a book by Jon Elster describing the phenomenon of adaptive preference formation

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