John Corbett, 4th Baron Rowallan

John Polson Cameron Corbett, 4th Baron Rowallan (born 8 March 1947), is a British hereditary peer.

He is the son of Arthur Corbett, 3rd Baron Rowallan, and Eleanor Mary Boyle.

The 2nd Baron had disinherited his eldest son and heir, Arthur Corbett, John's father.

He runs the Rowallan Activity Centre, an equestrian centre near Meikle Mosside, Fenwick in Ayrshire, with his third wife, Claire, Baroness Rowallan, and her daughter, Sophie Dinning, a former international showjumper.

They had two children together: Lord Rowallan married, thirdly, Claire Dinning Laidler, his present wife, daughter of Robert Laidler, in 1995, without issue.