1918 General Election - Portsmouth South
| Year | 1918 |
| General election | 1918 General Election |
| Constituency | Portsmouth South |
| Turnout | 62.0% |
Results
| Candidate | Party | Votes |
| Cayzer, Herbert Robin | Unionist with Coalition Coupon | 15,842 |
| Garland, Alison Vickers | Liberal | 4,283 |
| Lacey, James | Labour | 3,070 |