The 1903 Chorley by-election was held on 4 November 1903 when the incumbent Conservative MP, David Lindsay, was made Lord Commissioner of the Treasury. It was retained by Lindsay.
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | David Lindsay | 6,226 | 56.5 | ||
| Liberal | James Lawrence | 4,798 | 43.5 | ||
| Majority | 1,428 | 13.0 | |||
| Turnout | 11,024 | ||||
| Conservative hold | Swing | ||||