John Stourton, 1st Baron Stourton (19 May 1400 – 25 November 1462) of Stourton, Wiltshire, was an English soldier and politician, elevated to the peerage in 1448.
He was born 19 May 1400 at Witham Friary, Somerset, the son of Sir William de Stourton (abt 1373-18 Sep 1413), Speaker of the House of Commons, by his wife Elizabeth Moigne, daughter and co-heiress of Sir John Moigne of Ower Moigne, Dorset.
Stourton served as High Sheriff of Wiltshire in 1426, 1433 and 1437, Somerset and Dorset in 1428 and of Gloucestershire in 1439. He was returned to Parliament as knight of the shire for Wiltshire in Dec 1421, 1425 and 1432 and for Dorset in 1423. He was knighted c.1430.
He was also Treasurer of the Household from 1445 to 1453 and fought for five years in the wars in France and Normandy, acting as Lieutenant of Calais from 1450 to 1451. In 1448 he was raised to the peerage as Baron Stourton, of Stourton in the County of Wiltshire.
Stourton married Margery Wadham, a daughter of Sir John Wadham (c. 1344 – 1412) of Edge, Branscombe, Devon, of Merryfield, Ilton, Somerset, and of Wadham, Knowstone near South Molton, Devon. John Wadham (died 1412) was MP for Exeter in 1399 and for Devon, as a knight of the shire with Sir Philip Courtenay, in 1401. He was a Justice of the Common Pleas from 1389 to 1398, and ancestor to Nicholas Wadham co-founder of Wadham College, Oxford. Sir John and Margery Stourton had children as follows: