Sean Joseph Connolly, FBA, MRIA, FRHistS (born 9 December 1951) is an Irish historian, initially specialising in the social history of Irish Catholicism in the late eighteenth and early nineteenth centuries, but more recently on post-Reformation and early modern Ireland and modern Belfast. From 1996 to 2017, he was professor of Irish history at Queen's University Belfast, and has been emeritus professor there since 2017. After completing his undergraduate degree at University College, Dublin, and his doctorate at the University of Ulster, Connolly worked as an archivist at Public Record Office of Ireland from 1977 to 1980, before spending a year lecturing in history at St Patrick's College, Dublin; he returned to the University of Ulster in 1981 as a lecturer and became a reader there in 1990. Connolly was also Vice-President of the Royal Historical Society from 2014 to 2016, and was twice editor of the journal Irish Economic and Social History (from 1982 to 1990, and from 2000 to 2002).[1][2][3]