| Election Name: | Warwick and Leamington, 1903 |
| Type: | presidential |
| Country: | United Kingdom |
| Previous Election: | Warwick and Leamington (UK Parliament constituency)#Elections in the 1900s |
| Previous Year: | 1900 |
| Next Election: | Warwick and Leamington (UK Parliament constituency)#Elections in the 1900s |
| Next Year: | 1906 |
| Election Date: | 23 October 1903 |
| Candidate1: | Lyttelton |
| Party1: | Liberal Unionist Party |
| Popular Vote1: | 2,689 |
| Percentage1: | 51.8% |
| Candidate2: | Berridge |
| Party2: | Liberal Party (UK) |
| Popular Vote2: | 2,499 |
| Percentage2: | 48.2% |
| Map Size: | 250px |
| MP | |
| Posttitle: | Subsequent MP |
| Before Election: | Alfred Lyttelton |
| Before Party: | Conservative Party (UK) |
| After Election: | Alfred Lyttelton |
| After Party: | Conservative Party (UK) |
The Warwick and Leamington by-election was a Parliamentary by-election held on 23 October 1903.[1] The constituency returned one Member of Parliament (MP) to the House of Commons of the United Kingdom, elected by the first past the post voting system.
The Liberal Unionist Party held the seat:
At the following General Election the result was: