John Harington, 2nd Baron Harington of Exton

John Harington, 2nd Baron Harington of Exton (1592 – 27 February 1614), was a young English peer and politician. He was the Lord Lieutenant of Rutland and Baron Harington of Exton. He was educated with the Prince of Wales and they remained close friends until the prince's death. He was admitted to Sidney Sussex College, Cambridge, in 1607.

He succeeded his father as Baron in August 1613.

He was the surviving son of Sir John Harington (later created Baron Harington of Exton in 1603) and his wife, Anne Keilway, daughter of Robert Keilway, Surveyor of the Court of Wards and Liveries, born at Combe Abbey, near Coventry, Warwickshire, in April 1592.