Sky Atlantic is a television channel owned and operated by Sky plc. It broadcasts in the United Kingdom and the Republic of Ireland. Separate channels with the same name also operate in Germany, Italy and Austria. This article is about the version of the channel produced in the UK.

It launched on 1 February 2011 on Sky in the United Kingdom and the Republic of Ireland.

Sky Atlantic is available in both standard definition and high definition, the latter on Sky Atlantic HD.Stuart Murphy extended his responsibilities to become director of programmes for Sky 1, Sky 2, Pick and Sky Atlantic. On 5 May 2011, Elaine Pyke, the head of drama at Sky, was promoted to director of Sky Atlantic, reporting to Murphy.

Programmes on the channel are also offered to Sky customers via on-demand channels including the On Demand and Sky Go services. Both BT TV and Virgin Media had held talks with Sky over the new channel but have been unable to agree a carriage deal, in Virgin's case due to pricing.