Sinn Féin By-elections
| Election | Constituency | Candidate | Vote count | Vote share | Position |
| 3 May 2018 | West Tyrone | Órfhlaith Begley | 16,346 | 46.7% | 1st |
| 7 March 2013 | Mid Ulster | Francie Molloy | 17,462 | 46.9% | 1st |
| 9 June 2011 | Belfast West | Paul Maskey | 16,211 | 70.6% | 1st |