1880 General Election - Grantham
| Year | 1880 |
| General election | 1880 General Election |
| Constituency | Grantham |
| Turnout | 91.7% |
Results
| Candidate | Party | Votes |
| Mellor, John William | Liberal | 1,329 |
| Roundell, Charles Savile | Liberal | 1,304 |
| Cockayne-Cust, Henry Francis | Conservative | 915 |
| Marlay, Charles Brinsley | Conservative | 835 |