Zemach Shabad (Hebrew: צמח שאבאד, Polish: Cemach Szabad, Russian: Цемах Шабад, Tsemakh Shabad; 5 February 1864, Vilnius, Russian Empire (now Vilnius, Lithuania) — 20 January 1935, Vilnius) was a Jewish doctor and social and political activist. He was a member of the Senate (parliament) of the Second Polish Republic (1928) and a co-founder and vice-president of the YIVO (Institute for Jewish Research).In 1932, Shabad toured to Palestine with Dr. Abel Lapin from Kaunas. During his trip, Shabad hosted by the Health Committee of the Knesset and the Jerusalem Medical Association.