Walter Hungerford, 1st Baron Hungerford KG (1378–9 August 1449) was an English knight and landowner, from 1400 to 1414 Member of the House of Commons, of which he became Speaker, then was an Admiral and peer.
He won renown in the Hundred Years' War, fighting in many engagements, including the Battle of Agincourt in 1415. He was an English envoy at the Council of Constance in 1415. In 1417 he was made admiral of the fleet. On the death of Henry V he was an executor of Henry's will and a member of Protector Gloucester's council. He attended the conference at Arras in 1435, and was a Member of the House of Lords sitting as Baron Hungerford from January 1436 until his death in 1449. For some years he was Treasurer of England.
He was the only surviving son and heir of Sir Thomas Hungerford (died 1398) of Farleigh Castle in Wiltshire, the first person to be recorded in the rolls of the Parliament of England as holding the office of Speaker of the House of Commons. His mother was his father's second wife, Joan Hussey (died 1412), daughter and heiress of Sir Edmund Hussey of Holbrook.