The Living Brain is the name of two supervillains appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist Steve Ditko, the original Living Brain first appears in The Amazing Spider-Man #8 and has made few subsequent appearances since.
A foe of the superhero Spider-Man, the original Living Brain was created by the fictional International Computing Machines Corporation and billed as the most intelligent computer and robot in existence, capable of solving virtually any question asked. In more recent times, the Superior Spider-Man reprogrammed it to serve as a laboratory assistant at Parker Industries, with it remaining in that role after Peter Parker returned.