The Jewish Social Democratic Party in Galicia (Yiddish: יידישער סאציאל-דעמאקראטישער פארטיי אין גאליציען, yidisher sotsial-demokratisher partey in galizien, Polish: Żydowska Partia Socjal-Demokratyczna, abbreviated ŻPS) was a political party in Galicia and later also Bukovina, established in a split from the Polish Social Democratic Party of Galicia (PPSD) in 1905.

The party made its first public appearance on May 1, 1905, with separate May Day rallies in Kraków, Lemberg, Tarnów and Przemyśl.

[3] In the initial period of the existence of the party, it publish a monthly titled Der yudisher sotsial-demokrat.

[2][5] In 1913, several prominent leaders of the erstwhile Jewish Social Democracy began returning to the PPSD.

[10] Except for its organization in Galicia and Bukovina, the party also had presence (at warying times) in Vienna, New York City, Antwerp and Bielsk.