Niall Ó Donnghaile

Niall Ó Donnghaile
Leader of Sinn Féin in the Seanad
In office
29 June 2020  22 January 2024
LeaderMary Lou McDonald
Preceded byRose Conway-Walsh
Succeeded byConor Murphy
Senator
In office
8 June 2016  22 January 2024
ConstituencyAdministrative Panel
68th Lord Mayor of Belfast
In office
5 June 2011  6 June 2012
DeputyRuth Patterson
Preceded byPat Convery
Succeeded byGavin Robinson
Member of
Belfast City Council
In office
22 May 2014  26 May 2016
Preceded byDistrict created
Succeeded byMairéad O'Donnell
ConstituencyTitanic
In office
5 May 2011  22 May 2014
Preceded byReg Empey
Succeeded byDistrict abolished
ConstituencyPottinger
Personal details
Born (1985-05-28) 28 May 1985
Short Strand, Belfast, Northern Ireland
Political partySinn Féin
EducationColáiste Feirste
Alma materUniversity of Ulster

Niall Ó Donnghaile (Irish pronunciation: [ˈn̠ʲiəl̪ˠ ˈd̪ˠɔn̪ˠɣalʲə]; born 28 May 1985) is an Irish former Sinn Féin politician who served as a senator for the Administrative Panel from 2016 to 2024. He was the Leader of Sinn Féin in the Seanad from June 2020 to January 2024. He previously served as Lord Mayor of Belfast from 2011 to 2012 and a councillor on Belfast City Council from 2011 to 2016.