The Galloway by-election, 1925 was a by-election held for the British House of Commons constituency of Galloway in Scotland on 17 November 1925. The by-election was won by the Unionist Party candidate Sidney Streatfeild.
|Unionist gain from Liberal||Swing||N/A|
The constituency was created for the 1918 general election, at which a Coalition Government supporting, couponed, sitting Liberal MP was returned unopposed. At the following General Election in 1922, after the Coalition Government had ended, a Liberal beat a Unionist and in 1923, the sitting Liberal was returned unopposed.
The Labour Party, which had never before contested the constituency, decided to intervene and fielded as candidate, John Mitchell.
Polling Day was fixed for 17 November 1925, 43 days after the death of the previous member, allowing for a long campaign.
On an increased turnout, Streatfeild held the seat for the Unionists, with a reduced majority of 928 votes. The Labour candidate finished third, splitting the anti-Unionist vote enough to deny the Liberal victory;
At the following General Election in 1929, Dudgeon gained the seat for the Liberals;
|Liberal gain from Unionist||Swing||+2.1|
- The Times, 1 June 1929