Rosemary O'Day (born 29 May 1945) is professor emeritus of history at the Open University.
O'Day was educated at the Orme Girls' School now Newcastle-under-Lyme School in Staffordshire, the University of York, and at King's College, University of London.
[1] O’Day held the Eileen Power Studentship at London School of Economics.
Thomas Henry Brookes who held livings in Staffordshire.
O'Day was married to fellow historian David Englander (died 1999).