Niall Ó Donnghaile (Irish pronunciation: ['n?i?l?? o? 'd???n???al??]) (born 28 May 1985) is an Irish Sinn Féin politician who has served as a Senator since April 2016.
He previously served as Lord Mayor of Belfast from 2011 to 2012 and Councillor on Belfast City Council from 2011 to 2016.He was born in Belfast, Northern Ireland.
Ó Donnghaile was a Sinn Féin councillor for the Pottinger district electoral area in East Belfast.
He was educated through Irish at Coláiste Feirste, Belfast and subsequently obtained a B.A.(Hons) in Politics form Ulster University.
Ó Donnghaile was previously employed as the party's Press Officer in the Northern Ireland Assembly.A community worker in the Short Strand, the area of East Belfast in which he was born, and a member of the Short Strand Partnership Board, he also works with various other organisations in Belfast on issues such as the developments at Titanic Quarter and Sirocco Quays, and has spoken strongly in support of residents on the issue of the proposed runway extension at Belfast City Airport.