Mary Lou McDonald is an Irish politician. She is Sinn Féin's first member of the European Parliament in the Republic of Ireland, and was elected in the 2004 elections, for the constituency of Dublin.
She contested Dublin West at the 2002 general election, picking up 8.02% of first preference votes.
This article is a stub. You can help Ireland Information Guide by clicking on the "edit" tab above, and expanding it. Go to the home page of Ireland Information Guide for more details on "how to edit a page".