John Ponsonby
John Ponsonby may refer to:
- John Ponsonby (politician), Irish politician
- John Ponsonby, 1st Viscount Ponsonby, British diplomat
- John Ponsonby, 4th Earl of Bessborough, English politician
- John Ponsonby, 5th Earl of Bessborough, British politician
- John Ponsonby (British Army officer), British general
- John Ponsonby (RAF officer), senior commander in the Royal Air Force
- John Ponsonby (colonel), colonel in Oliver Cromwell's army and member of parliament