La

Labour Popular Socialist Party
(Popular Socialists)

Russian political party which separated from the Right wing of the Socialist-Revolutionary Party in 1906. The P.S.s stood for a bloc with the Cadets, earning them the nickname "Social-Cadets".

During the First World War the P.S.s took a social-chauvinist stand. After the February revolution of 1917 the Popular Socialist Party merged with the Trudoviks and actively supported the Provisional Government, in which it was represented. After the October Revolution the P.S.s participated in plots and armed acts against the Soviet government. The party dissolved during the Civil Wars of 1918-1922.

The party's leaders were A. V. Peshekhonov, N. F. Annensky, V. A. Myakotin, and others.