John Bligh
John Bligh may refer to:
- John Bligh, 1st Earl of Darnley, Irish MP for Trim and for Athboy 1713–1721
- John Bligh, 3rd Earl of Darnley, his son, Irish MP for Athboy 1739–1747, British MP for Maidstone
- John Bligh, 4th Earl of Darnley, his son, British peer and cricketer
- John Bligh, [6th Earl of Darnley], British peer
- John [Duncan Bligh], his son, British envoy to Sweden and Hanover
- John Bligh (medical educator), British doctor and medical educator
- John Bligh (Royal Navy officer), British naval officer
- John O'Connell Bligh, Native Police officer in the British colonies of New South Wales and Queensland