Sir Thomas Dingley (executed 9 or 10 July 1539) was an English prior of the Knights of St. John of Jerusalem.
Sir Thomas was the son of John Dingley of Boston, Lincolnshire and his wife, Mabel, daughter of Edmund Weston.
He was accused, together with Robert Granceter, merchant, of "going to several foreign princes and persuading them to make war with the King".
He was found guilty of high treason 28 April 1539, and beheaded on Tower Hill, together with Sir Adrian Fortescue.
[1] The village of Dingli, Malta is probably named after the knight Dingley, who had owned lands in the surrounding area.