"Young Lochinvar", also referred to as Lord Lochinvar, is a figure in Sir Walter Scott's epic poem Marmion, about the Battle of Flodden Field.
In "Jongor and the Wold Newton Family", a deleted portion of Philip José Farmer's Doc Savage: His Apocalyptic Life, "Young Lochinvar" is given as an ancestor of the Viscounts of Kenmure and Lords Lochinvar (cr. 1633), and therefore of Jongor.