CONSTITUENCY RESULT : Islwyn
| Candidate name | Party | Gender | Number of votes | Share (%) | Change vs. 2017 for party (percentage points) | ||
| Chris Evans | Labour and Co-operative | Male | 15,356 | 44.7% | -14.1 | ||
| Gavin Chambers | Conservative | Male | 9,892 | 28.8% | +1.6 | ||
| James Wells | Brexit Party | Male | 4,834 | 14.1% | 0.0 | ||
| Zoe Hammond | Plaid Cymru | Female | 2,286 | 6.7% | -0.9 | ||
| Jo Watkins | Liberal Democrat | Female | 1,313 | 3.8% | +1.9 | ||
| Catherine Linstrum | Green | Female | 669 | 1.9% | 0.0 |
| Election statistics | ||
| Majority | ||
| Votes | 5,464 | |
| Percent | 15.9% | |
| Rank (1 = highest %) | 425 | |
| Turnout | ||
| Constituency | 62.0% | |
| Region | 66.6% | |
| UK | 67.3% | |
| Constituency in 2017 | 64.2% | |
| Size of electorate | 55,423 | |
| Valid votes cast | 34,350 |