Alasdair McDonnell, Irish physician and politician
Alasdair McDonnell (born 1 September 1949) is an Irish politician who is a member of the Social Democratic and Labour Party (SDLP), and was its leader from 2011 to 2015. He was the Member of Parliament for Belfast South from 2005 to 2017 and also a Member of the Legislative Assembly of Northern Ireland for Belfast South from 1998 to 2015.