John Ormsby Vandeleur
John Ormsby Vandeleur may refer to:
- Sir John Ormsby Vandeleur, British Army general
- John Ormsby Vandeleur (Ennis MP), Irish landowner and politician, MP for Ennis and Carlow
- John Ormsby Vandeleur (MP for Granard), Irish politician, MP for Granard 1790–1798