Sir Walter Stonor (died 1551) was the son of Thomas Stoner of North Stoke, Oxfordshire and Sybilla, the daughter of Sir David Brecknock. He was a Knight of the Body and appointed Lieutenant of the Tower of London on 29 September 1546. He had at least three probable brothers, John, Edmund and Robert. He was knighted by Thomas Howard, then Earl of Surrey, after the Battle of Flodden in 1513. He died in 1551 with no male heir.