Yitzhak Gruenbaum, Polish-Israeli journalist and politician, 1st Internal Affairs Minister of Israel (b. 1879)

Yitzhak Gruenbaum (Polish: Izaak Grünbaum, Hebrew and Yiddish: יצחק גרינבוים; 1879–1970) was a noted leader of the Zionist movement among Polish Jewry in the interwar period and of the Yishuv in Mandatory Palestine. Gruenbaum was the first Interior Minister of the State of Israel.