1931 General Election - South Dorset
| Year | 1931 |
| General election | 1931 General Election |
| Constituency | South Dorset |
| Turnout | 73.3% |
Results
| Candidate | Party | Votes |
| Gascoyne-Cecil, Robert Arthur James | Conservative | 21,284 |
| Wiltshire, Arthur William | Labour | 8,809 |