Twenty Twelve is a BBC television comedy series written and directed by John Morton. Starring Hugh Bonneville, Jessica Hynes and Amelia Bullmore, the programme is a spoof on-location mockumentary following the organisation of the 2012 Summer Olympics in London. It was first broadcast on UK television station BBC Four in March 2011 to coincide with the 500-day countdown to the opening ceremony.

Twenty Twelve gained mainly positive reviews from critics, and a four-part second series was announced on 15 April 2011, which began airing on 30 March 2012 on BBC Two. A further three episodes of series 2 began airing from 10 July 2012. The series' last episode was broadcast on 24 July 2012, three days before the opening ceremony of the London Olympic Games.

Several core characters went on to appear in a sequel, W1A, in 2014.