1979 General Election - Swansea West
| Year | 1979 |
| General election | 1979 General Election |
| Constituency | Swansea West |
| Turnout | 79.6% |
Results
| Candidate | Party | Votes |
| Williams, Alan | Labour | 24,175 |
| Mercer, D | Conservative | 23,774 |
| Ball, MJ | Liberal | 3,484 |
| Gwent, Gruffydd R ap | Plaid Cymru | 1,012 |