Outlander is a historical drama television series based on the Outlander novel series by Diana Gabaldon. Developed by Ronald D. Moore, the show premiered on August 9, 2014, on Starz. It stars Caitríona Balfe as Claire Randall, a former Second World War military nurse in Scotland who, in 1945, finds herself transported back in time to 1743. There she encounters, falls in love with and marries a dashing Highland warrior named Jamie Fraser (Sam Heughan), a tacksman of Gabaldon's fictionalized version of Clan Fraser of Lovat. Here, Claire becomes embroiled in the Jacobite rising.

The 16-episode first season of the television series (released as two half-seasons) is based on the first novel in the series, Outlander. The second season of 13 episodes, based on Dragonfly in Amber, aired from April to July 2016. The 13-episode third season, based on Voyager, aired from September to December 2017. The 13-episode fourth season, based on Drums of Autumn, aired from November 2018 to January 2019. The fifth season of 12 episodes, based on The Fiery Cross, aired from February to May 2020. The sixth season of 8 episodes, based on A Breath of Snow and Ashes, aired from March to May 2022. The seventh season which consists of 16 episodes, is based on An Echo in the Bone and premiered on June 16, 2023.

By February 2022, development had begun on a prequel series titled Outlander: Blood of My Blood, which will focus on Jamie Fraser's parents Brian and Ellen Fraser. In January 2023, Outlander: Blood of My Blood was officially confirmed for a ten-episode first season, and Outlander was renewed for a ten-episode eighth and final season.