| Election Name: | 1912 Glasgow St Rollox by-election |
| Alliance1: | Labour Party (UK) |
| Registered: | 20,079 |
| Country: | United Kingdom |
| Previous Election: | December 1910 United Kingdom general election |
| Previous Year: | Dec. 1910 |
| Next Election: | 1918 United Kingdom general election |
| Next Year: | 1918 |
| Election Date: | 26 February 1912 |
| Candidate1: | McKinnon Wood |
| Party1: | Liberal Party (UK) |
| Popular Vote1: | 8,530 |
| Percentage1: | 51.41% |
| Candidate2: | Frederick Alexander Macquisten |
| Type: | parliamentary |
| Popular Vote2: | 8,061 |
| Party2: | Liberal Unionist Party |
| Percentage2: | 48.59% |
| MP | |
| Posttitle: | Subsequent MP |
| Before Election: | McKinnon Wood |
| Before Party: | Liberal Party (UK) |
| After Election: | McKinnon Wood |
| After Party: | Liberal Party (UK) |
| Votes For Election: | Constituency of Glasgow St Rollox |
| Turnout: | 82.63% (1.04%) |
| Swing1: | 4.34% |
| Swing2: | 4.34% |
| Alliance2: | British Socialist |
The Glasgow St Rollox by-election was a Parliamentary by-election held on 26 February 1912.[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 British Socialist Party who were unable to organise themselves a candidate to contest the election, decided nevertheless to campaign in the constituency. They issued a leaflet and toured the various works, lecturing the voters. They were critical of the electoral alliance between the Liberal and Labour parties and called on the electors to vote for the Unionist Party candidate.[2]
A General Election was due to take place by the end of 1915. By the autumn of 1914, the following candidates had been adopted to contest that election. Due to the outbreak of war, the election never took place