John Bartholomew Wakelyn Nightingale, Baron of Cromarty (born 7 September 1960) is a British nobleman and academic. He is Associate Professor of Medieval History at the University of Oxford and Tutorial Fellow in History at Magdalen College.^[1]

The Baron of Cromarty was born 7 September 1960, the son of Michael and Hilary Nightingale. He is married to Lucy Fergusson, daughter of Drs. Patrick and Alison Fergusson, a partner at Linklaters LLP.^[2]

He was educated at Winchester College, Winchester, Hampshire, England and also graduated from Magdalen College, Oxford, with a Master of Arts and later with a Doctor of Philosophy (D.Phil.). At Merton College, Oxford, he was the Harmsworth Senior Research Scholar between 1984 and 1986, and was a British Academy Postdoctoral Fellow from 1989 to 1992.^[3] In 1986, he became a Fellow of Magdalen College and later, from 1993, a Tutor of Modern History.^[4] He was Assessor of the University of Oxford from 2008 to 2009 and a member of its governing council from 2008 to 2014.^[5] He is the current Baron of Cromarty in the Baronage of Scotland.

He was an elected Fellow of the Governing Body of Winchester College from 2002 to 2017.^[6]

• Hidden Magdalen (2008) (associate editor)
• Monasteries and Patrons in the Gorze Reform: Lotharingia c.850-1000 (Oxford: Oxford University Press, 2001)
• 'Oswald, Fleury and Continental Reform', in Nicholas Brooks and Catherine Cubitt, eds., St Oswald of Worcester: Life and Influence (London and New York: Leicester University Press, 1996), pp. 23-45
• 'Bishop Gerard of Toul (963-94) and Attitudes to Episcopal Office', in Timothy Reuter, ed., Warriors and Churchmen in the High Middle Ages: Essays Presented to Karl Leyser (London: Hambledon Press, 1992), pp. 41-62