Robbie Coltrane, OBE (born 30 March 1950) is a Scottish actor, comedian and author.

Coltrane was born Anthony Robert McMillan in Rutherglen, South Lanarkshire, the son of Jean McMillan Ross (née Howie), a teacher and pianist, and Ian Baxter McMillan, a general practitioner who also served as a forensic police surgeon. He has an older sister, Annie, and a late younger sister, Jane. Coltrane is the great-grandson of Scottish businessman Thomas W. Howie. He was educated at the prestigious Glenalmond College in Perthshire, from which he was nearly expelled after hanging the prefects' gowns from the school clocktower. Though he later described his experiences there as deeply unhappy, he played for the First XV, was head of the school's debating society and won prizes for his art. From Glenalmond, Coltrane went on to Glasgow School of Art, where he was ridiculed for "having an accent like Prince Charles (which he quickly disposed of, though not before gaining the nickname "Lord Fauntleroy") and then the Moray House College Of Education in Edinburgh. Coltrane later called for public schools to be banned and used to be known as "Red Robbie", rebelling against his conservative upbringing through involvement with Amnesty International, Greenpeace, the Labour Party and the Campaign for Nuclear Disarmament.

Coltrane moved into acting in his early twenties, taking the stage name Coltrane (in tribute to jazz saxophonist John Coltrane) and working in theatre and stand-up comedy. Appearing in the 1981 BBC television comedy series A Kick Up the Eighties, his comic skills also brought him roles in the The Comic Strip Presents (1982) series and the comedy sketch shows Alfresco (1983-1984) and Laugh??? I Nearly Paid My Licence Fee (1984).