Union of October 17
| Union of 17 October Союз 17 Октября | |
|---|---|
| President | Alexander Guchkov (since 1907) | 
| Founders | Dmitry Shipov Pavel Korff Alexander Guchkov Mikhail Stakhovich | 
| Founded | Late October 1905 (de facto formation) 8–12 February 1906 (first congress) | 
| Dissolved | After 16 March 1917 | 
| Headquarters | Saint Petersburg, Russian Empire | 
| Newspaper | Word Voice of Moscow | 
| Ideology | Reformism Liberal conservatism Constitutional monarchism Pro-Stolypin reform | 
| Political position | Centre-right to right-wing | 
| National affiliation | Progressive Bloc (1915–1917) | 
| Colours | Blue and white | 
| State Duma (1906) | 13 / 497 | 
| State Duma (Jan 1907) | 35 / 518 | 
| State Duma (Oct 1907) | 154 / 441 | 
| State Duma (1912) | 98 / 442 | 
The Union of 17 October (Russian: Союз 17 Октября, Soyuz 17 Oktyabrya), commonly known as the Octobrist Party (Russian: Октябристы, Oktyabristy), was a liberal-reformist constitutional monarchist political party in late Imperial Russia. It represented moderately right-wing, anti-revolutionary and constitutionalist views.