The Bad Seed may refer to one of the following works:
- The Bad Seed The original 1954 book by William March.
- The Bad Seed The 1954 play by Maxwell Anderson which adapted the book.
- The Bad Seed (1956) The 1956 film based upon both the above.
- The Bad Seed (1985) The 1985 film based upon both of the above.
- The Bad Seed (2018) The 2018 remake based on all of the above.
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