M.I. High was a British action television series produced by Kudos for CBBC and created by Keith Brumpton. The series focused on a team of undercover teenage spies working for a fictional version of the secret intelligence agency MI9 who had to balance their school life with their jobs as secret agents. The line-up of spies was altered between the show's seven series.

The series premiered on 8 January 2007 and originally ended on 21 March 2011 after five series, before being revived for a further two series that were broadcast between 7 January 2013 and 31 March 2014. The show was cancelled in 2015, as the main filming locations of the series no longer existed.