Jonny Zero is an American television action-crime drama series, created and written by R. Scott Gemmill and executive produced by John Wells, that premiered on Fox on January 14, 2005. The series principally stars Franky G as Jonny Calvo, an ex-con approached to be an FBI informant following his imprisonment for murder. The series co-stars GQ and Brennan Hesser.

A single season of thirteen episodes were produced, but Fox aired only eight of the thirteen episodes, choosing to cancel the series due to low ratings after initially choosing to broadcast it in the Friday night death slot. During the show's run, episodes were aired out of order, causing numerous continuity errors, including Jonny's best friend being murdered, but then turning up two episodes later alive and well, introduced as a new character. The series was broadcast in its entirety in Australia on ABC in 2007.