Results for the UK general election on 12 December 2019 Elections contested by Sinn Féin
A general election to the 58th Parliament of the United Kingdom with an electorate of 47,562,702, having 32,014,110 valid votes and 117,919 invalid votes.
Read the House of Commons Library briefing.
| Constituency | Candidate | Electorate | Turnout | Votes | Vote share | Vote change | Position |
| Strangford | CARLIN, Ryan | 66,928 | 56.0% | 555 | 1.5% | -1.3% | 7th |
| Lagan Valley | MCCLEAVE, Gary | 75,735 | 60.0% | 1,098 | 2.4% | -1.1% | 5th |
| East Antrim | MCMULLAN, Oliver | 64,830 | 57.5% | 2,120 | 5.7% | -3.6% | 4th |
| South Antrim | KEARNEY, Declan | 71,711 | 59.9% | 4,887 | 11.4% | -6.7% | 4th |
| North Antrim | MCSHANE, Cara | 77,134 | 57.1% | 5,632 | 12.8% | -3.5% | 4th |
| East Londonderry | NICHOLL, Dermot | 69,246 | 56.8% | 6,128 | 15.6% | -10.9% | 3rd |
| Foyle | MCCALLION, Elisha | 74,346 | 63.4% | 9,771 | 20.7% | -19.0% | 2nd |
| Upper Bann | O'DOWD, John | 82,887 | 60.4% | 12,291 | 24.6% | -3.4% | 2nd |
| South Down | HAZZARD, Chris | 79,175 | 62.9% | 16,137 | 32.4% | -7.5% | 1st |
| Newry and Armagh | BRADY, Mickey | 81,226 | 62.5% | 20,287 | 40.0% | -8.0% | 1st |
| West Tyrone | BEGLEY, Órfhlaith | 66,259 | 62.2% | 16,544 | 40.2% | -10.6% | 1st |
| Fermanagh and South Tyrone | GILDERNEW, Michelle | 72,848 | 69.7% | 21,986 | 43.3% | -3.9% | 1st |
| Mid Ulster | MOLLOY, Francie | 70,449 | 63.3% | 20,473 | 45.9% | -8.6% | 1st |
| Belfast North | FINUCANE, John | 72,225 | 67.9% | 23,078 | 47.1% | 5.4% | 1st |
| Belfast West | MASKEY, Paul | 65,644 | 59.1% | 20,866 | 53.8% | -12.9% | 1st |
Turnout as calculated by the House of Commons Library, is the total number of votes cast and not spoiled, divided by the size of the electorate.
Under section 13(b) of the Representation of the People Act 1985, a candidate gaining 5% or less of the vote share will forfeit their deposit.