1955 General Election - Rhondda East
| Year | 1955 |
| General election | 1955 General Election |
| Constituency | Rhondda East |
| Turnout | 77.1% |
Results
| Candidate | Party | Votes |
| Mainwaring, William Henry | Labour | 21,859 |
| Powell, Annie | Communist | 4,544 |
| Rowlands, Herbert | Conservative | 3,711 |