Steven Robertson (born 1 January 1977, in Vidlin, Shetland Islands, Scotland) is a Scottish actor who overcame severe dyslexia to be named Student of the Year at Fife College in Kirkcaldy, before becoming the first Shetlander accepted to the Guildhall School of Music and Drama in London. In 2004 he was nominated for an Ian Charleson Award for his role in Chekhov's The Seagull, and his first major film role came that same year opposite James McAvoy in Inside I'm Dancing (as Michael Connolly, a young man with cerebral palsy).

His most notable film credits include an Angelic Priest in Kingdom of Heaven (2005), Jonathan in Joyeux Noël (2005), Sir Francis Throckmorton in Elizabeth: The Golden Age (2007, directed by Shekhar Kapur), Minister Davit Kezerashvili in 5 Days of War (2011), Junior Technician Pinnock in The Tourist (2010, with Johnny Depp), Francis Begbie's lawyer in T2 Trainspotting (2017), and Jim in Tell It to the Bees (2018). On television he is best known as Detective Constable Sandy Wilson in Shetland (2013–present, 62 episodes, BBC One), Dominic Rook in Being Human (2008–2013, 7 episodes, BBC Three), Robert Oswald in Harlots (2017, with Heather Graham), Richard Pritchard in Doctor Who (2015), Sergeant Bob Fraser in Red Riding (2009), Cuthbert Clare in Tess of the D'Urbervilles (2008), Mark Bradwell in The Bay (2019, ITV, 6 episodes), and Ian in Channel Zero (2018, 6 episodes), with additional credits in Luther (2011), Ripper Street (2012), In the Flesh (2014), Utopia (2014), Vera (2018), Auggie (2021), and Survivor (2015).