Kevin McKidd (born 9 August 1973) is a Scottish actor and television director best known for portraying Dr. Owen Hunt in Grey's Anatomy (2008–2026), Lucius Vorenus in Rome and Tommy Mackenzie in Danny Boyle's Trainspotting (1996).

McKidd played Colin in the romantic comedy film Made of Honor (2008), Count Vronsky in the BBC miniseries Anna Karenina (2000), and Dan Vasser in the NBC series Journeyman (2007). He provided the voice of John "Soap" MacTavish in the video games Call of Duty: Modern Warfare 2 and Call of Duty: Modern Warfare 3. He also played Poseidon in the film Percy Jackson & the Olympians: The Lightning Thief, and Father Deegan in the Father Ted Christmas special.

McKidd was born on 9 August 1973, in Elgin, Moray, Scotland, the son of Kathleen, a secretary, and Neil McKidd, a plumber. He grew up on a council estate in Elgin. At 17, McKidd worked at the Macallan distillery in Speyside. He later went to work with the Lumsden family of coppersmiths. He attended Seafield Primary School and Elgin Academy. and was a member of the local amateur dramatic group, Moray Youth Theatre. Planning to study engineering, he initially attended the University of Edinburgh, then decided to audition at Edinburgh's Queen Margaret University, where he was accepted to study Drama. He joined Edinburgh University's student theatre company, Bedlam Theatre, where he was a member of the improvisational comedy troupe The Improverts.

After playing Tommy Mackenzie in Trainspotting, McKidd was cast as Father Deegan in the 1996 Christmas episode of Father Ted. Subsequent roles include Malky Johnson in Small Faces. In 2004, he played James Hepburn, 4th Earl of Bothwell, the third husband of Mary, Queen of Scots, in the BBC mini-series Gunpowder, Treason & Plot.

In 1999, he was part of an ensemble cast in Mike Leigh's Topsy Turvy, depicting the development of Gilbert and Sullivan's The Mikado. The actors researched their historical characters and used this knowledge during extensive rehearsals to help develop dialogue for scenes blocked out by Leigh. McKidd, like the rest of the cast, did his own singing in the Gilbert and Sullivan operettas portrayed in the film. He drew on his own experience of performing light opera, having had small roles with his hometown Elgin Operatic Society in his youth.

In 2001, he played Elliot in the British film Understanding Jane, directed by Caleb Lindsay. He appeared in Ridley Scott's Kingdom of Heaven, and in the 2002 film adaptation of Nicholas Nickleby. In Neil Marshall's horror film Dog Soldiers, he appeared as Pte Lawrence Cooper. In the 2005 BBC drama, The Virgin Queen, he played Thomas Howard, 4th Duke of Norfolk.

In 1998, McKidd was in the four part BBC2 series Looking After Jo Jo, playing the role of Basil. He was also one of the main stars of the joint HBO/BBC series Rome, where his portrayal of the soldier-politician Lucius Vorenus received critical acclaim.

McKidd starred in the premiere of Caryl Churchill's newest play, Far Away. He played Todd, the romantic partner of Joan, and her co-worker as hat maker.