John Giffard
John Giffard is the name of the following people:
- John Giffard, 1st Baron Giffard (1232–1299), Anglo-Norman nobleman and military man
- John Giffard, 2nd Baron Giffard (1287–1322), Anglo-Norman nobleman and rebel
- John Giffard († 1556) (around 1465–1556), British landowner, courtier, soldier and politician
- John Giffard (1534–1613) , British landowner and politician
- John Giffard (1602–1665) , British officer
- John Giffard, 3rd Earl of Halsbury (1908–2000), British chemist and art collector