Siedlce pogrom refers to the events of September 8–10 or 11, 1906, in Siedlce, (Congress) Kingdom of Poland. It was part of a wave of pogroms in Russia and controlled territories (such as the Kingdom of Poland), in the larger context of the widespread unrest. The pogrom in Siedlce was organized by the Russian secret police (Okhrana). There were 26 fatalities among the Jewish populations.