Highlander is a 1986 fantasy action-adventure film directed by Russell Mulcahy from a screenplay by Gregory Widen, Peter Bellwood, and Larry Ferguson. It stars Christopher Lambert, Roxanne Hart, Clancy Brown, and Sean Connery. The film chronicles the climax of an age-old war between immortal warriors, depicted through interwoven past and present-day storylines. It is the first film in the Highlander franchise.

Connor MacLeod (Lambert) is born in the Scottish Highlands in the 16th century. After being mortally wounded by the murderous Kurgan (Brown) in battle, he makes a seemingly miraculous recovery and is banished from his village under suspicion of witchcraft. Five years later, MacLeod is found by swordsman Ramírez (Connery), who trains him in swordplay and explains that they and others were born immortal, invincible unless beheaded. Immortals wage a secret war, fighting each other until the last few remaining will meet at the Gathering to fight for the Prize. In 1985, the Gathering is finally happening in New York City, and MacLeod must ensure that the Prize is not won by the Kurgan.

Highlander was a commercial failure on its initial theatrical release, grossing only a little less than $13 million worldwide against a production budget of $19 million, while receiving mixed reviews. Nevertheless, it became a cult film and inspired several film sequels and television spin-offs. The rock band Queen recorded several songs for the soundtrack, with "Princes of the Universe" also used for the title sequence in the television series. The tagline, "There can be only one", has carried on into pop culture.