John Spencer-Churchill
John Spencer-Churchill may refer to:
- John Spencer-Churchill, 7th Duke of Marlborough, British statesman and nobleman
- John Strange Spencer-Churchill, soldier and brother of the former British prime minister, Winston Churchill
- John Spencer-Churchill, 10th Duke of Marlborough, British peer
- John Spencer-Churchill (artist), artist and son of John Strange Spencer-Churchill
- John Spencer-Churchill, 11th Duke of Marlborough, British peer
- John Kemys Spencer-Churchill, British colonial administrator