Sanditon is a British historical drama television series adapted by Andrew Davies from an unfinished manuscript by Jane Austen and starring Rose Williams, Crystal Clarke, Theo James, and Ben Lloyd-Hughes. Set during the Regency era, the plot follows a young and naive heroine as she navigates the new seaside resort of Sanditon.

Due to the unfinished nature of the novel, the original work was used for the majority of the first episode, and then Davies used the developed characters to complete the story. The novel is set in a seaside town during a time of social change. At the time of her death in 1817, Austen had completed 24,000 words of the novel, amounting to eleven chapters together with part of a twelfth.

The series first aired on ITV in the United Kingdom on 25 August 2019 in eight parts, and in the United States on 12 January 2020 on PBS, which supported the production as part of its Masterpiece anthology. A second and third series were commissioned in May 2021, as part of a collaboration between PBS and BritBox, with ITV acquiring the series for later linear broadcast (i.e., broadcast programming; compare, OTT).