Paul John Barbieri (21 November 1958 – 11 April 2019), known professionally as Ian Cognito, was an English stand-up comedian.
An iconoclastic performer, Cognito had been compared to Lenny Bruce, Bill Hicks, and Jerry Sadowitz but never achieved success in the mainstream media, in part at least due to his reputation for being a hellraiser.
He won the Time Out Award for Stand-up Comedy in 1999.