Pádraig "Paddy" MacKernan (24 April 1940 – 25 January 2010) was an Irish diplomat who served as Secretary General of the Irish Department of Foreign Affairs as well as Irish Ambassador to both France and the United States and as an Irish member of the EEC and EC's Political Committee and later the EC and EU's Committee of Permanent Representatives, and as an Irish negotiator of the Single European Act and the Maastricht Treaty.