The Riddler (Edward Nigma) is a fictional supervillain appearing in American comic books published by DC Comics, commonly as an adversary of the superhero Batman. Created by writer Bill Finger and artist Dick Sprang, the character first appeared in Detective Comics #140 (Oct. 1948).

Depicted as a Gotham City criminal mastermind, the Riddler takes delight in incorporating riddles and puzzles into his plots, and leaves them as clues for the authorities and Batman to solve. The character is one of Batman's most enduring enemies and belongs to the collective of adversaries that make up Batman's rogues gallery.

Frank Gorshin and John Astin portrayed the character in the 1960s Batman television series, and Jim Carrey portrayed him in the 1995 film Batman Forever. Cory Michael Smith currently portrays Edward Nigma in the television show Gotham. In 2014, the Riddler was ranked as IGN's 59th Greatest Comic Book Villain of All Time

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