William Hastings, 1st Baron Hastings KG (c. 1431 – June 1483) was an English nobleman. A loyal follower of the House of York during the Wars of the Roses, he became a close friend and one of the most important courtiers of King Edward IV, whom he served as Lord Chamberlain. At the time of Edward's death he was one of the most powerful and richest men in England. He was executed following accusations of treason by Edward's brother and ultimate successor, Richard III. The date of his death is disputed; early histories give 13 June, which is the traditional date.