Leo Bloom is a character in Mel Brooks's films and musical of The Producers. Leo is a nervous accountant, prone to panic attacks and who keeps a security blanket to calm himself. Nevertheless it is Leo who has the idea of how to make money from a failed play.

In the 1968 film he was played by Gene Wilder, and in the Broadway musical and 2005 film by Matthew Broderick. He has also been played on stage by Steven Weber, Lee Evans and John Gordon Sinclair, amongst others.