| Year: | 1868 |
|---|---|
| General election: | 1868 General Election |
| Constituency: | South Northamptonshire |
| Turnout: | 57.8% |
Results
| Candidate | Party | Votes |
| Knightley, Rainald | Conservative | 2522 |
| Cartwright, Fairfax William | Conservative | 2505 |
| FitzRoy, Frederick John | Liberal | 2305 |