The Lunacy of Duke Venomania may refer to:
- The song by mothy titled "The Lunacy of Duke Venomania".
- The light novel by mothy titled "Deadly Sins of Evil: The Lunacy of Duke Venomania".
- The manga by Reki Bito titled "The Lunacy of Duke Venomania".
- The short story by mothy titled "The Lunacy of Duke Venomania: Valentine's Day".
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