Mary Elizabeth Frances Henry (born 11 May 1940 in Blackrock, Cork) is a former Irish politician and medical doctor. She was an independent member of Seanad Éireann. She was elected Pro-Chancellor of the University of Dublin in 2012. By profession she is a University Professor and medical practitioner. In 1966 she married John McEntagart of Dublin, Merchant and they have three children. She is a member of the Church of Ireland. She represented the Dublin University constituency in the Seanad from 1993 until 2007.