| Year: | 1857 |
|---|---|
| General election: | 1857 General Election |
| Constituency: | Dorset |
| Turnout: | 48.2% |
Results
| Candidate | Party | Votes |
| Portman, William Henry Berkeley | Whig | 2430 |
| Sturt, Henry Gerard | Conservative | 2197 |
| Seymer, Henry Ker | Conservative | 2177 |
| Floyer, John | Conservative | 2159 |