The Tudors is a British-Canadian historical fiction television series set primarily in 16th-century England, created and written by Michael Hirst and produced for the American premium cable television channel Showtime. The series was a collaboration among American, British, and Canadian producers, and was filmed mostly in Ireland. While named after the Tudor dynasty as a whole, it is based specifically upon the reign of King Henry VIII.

The series was produced by Peace Arch Entertainment for Showtime in association with Reveille Eire, Working Title Television, and the Canadian Broadcasting Corporation, and was filmed in Ireland. The first two episodes debuted on DirecTV, Time Warner Cable OnDemand, Netflix, Verizon FiOS On Demand, Internet Movie Database and on the website of the series before the official premiere on Showtime. The Tudors premiered on 1 April 2007; it was the highest-rated Showtime series in three years. In April 2007, the show was renewed for a second season, and in that month the BBC announced it had acquired exclusive broadcast rights for the series in the United Kingdom, which it started to broadcast on 5 October 2007. The CBC began broadcasting the show on 2 October 2007.

Season Two debuted on Showtime on 30 March 2008, and on BBC 2 on 1 August 2008. Production on Season Three began on 16 June 2008 in Bray, County Wicklow Ireland, and that season premiered on Showtime on 5 April 2009, and debuted in Canada on CBC on 30 September 2009. The day after broadcast, downloadable episodes debuted in Canada on MoboVivo.

Showtime announced on 13 April 2009 that it had renewed the show for a fourth and final season. The network ordered ten episodes that were first broadcast on 11 April 2010. The series finale was broadcast on 20 June 2010. The final season was shown in Canada on CBC between 22 September and 23 November 2010.

International distribution rights are owned by Sony Pictures Television.