John Ratcliffe
John Ratcliffe is the name of the following people:
- John Ratcliffe (politician, 1582) (1582–1627), English soldier and politician
- John Ratcliffe (politician, around 1611) (around 1611–1673), English lawyer and politician
- John Ratcliffe (politician, 1965) (born 1965), American politician
- John Ashworth Ratcliffe (1902–1987), British physicist and radio astronomer