| Election Name: | 1907 Aberdeen South by-election |
| Type: | presidential |
| Country: | United Kingdom |
| Previous Election: | Aberdeen South (UK Parliament constituency)#Elections in the 1900s |
| Previous Year: | 1906 |
| Next Election: | Aberdeen South (UK Parliament constituency)#Elections in the 1910s |
| Next Year: | Jan. 1910 |
| Election Date: | 20 February 1907 |
| Candidate1: | Esslemont |
| Party1: | Liberal Party (UK) |
| Popular Vote1: | 3,779 |
| Percentage1: | 42.3% |
| Candidate2: | McNeill |
| Party2: | Conservative Party (UK) |
| Popular Vote2: | 3,412 |
| Percentage2: | 38.2% |
| Candidate3: | Bramley |
| Party3: | Independent Labour Party |
| Popular Vote3: | 1,740 |
| Percentage3: | 19.5% |
| Map Size: | 250px |
| MP | |
| Posttitle: | Subsequent MP |
| Before Election: | James Bryce |
| Before Party: | Liberal Party (UK) |
| After Election: | George Esslemont |
| After Party: | Liberal Party (UK) |
The 1907 Aberdeen South by-election was held on 20 February 1907. The by-election was held due to the incumbent Liberal MP, James Bryce, being appointed British Ambassador to the United States. It was won by the Liberal candidate George Esslemont.[1]
Fred Bramley, who stood for the "Aberdeen Labour Representation Committee", was not officially endorsed by the Labour Party or the Scottish Workers' Representation Committee.[2]
Esslemont, the Liberal candidate, supported extending the right to vote to women. Despite this, the Women's Social and Political Union set up a local campaign office to campaign against him. This put the WSPU in conflict with local women's suffrage campaigners who supported Esslemont.[3]