Yosef Weitz (Hebrew: יוסף ויץ; 1890–1972) was the director of the Land and Afforestation Department of the Jewish National Fund (JNF). From the 1930s, Weitz played a major role in acquiring land for the Yishuv, the pre-state Jewish community in Palestine.
Yosef Weitz was born in Boremel, Volhynia in the Russian Empire in 1890. In 1908, he immigrated to Palestine with his sister, Miriam, and found employment as a watchman and an agricultural laborer in Rehovot. In 1911, he was one of the organizers of the Union of Agricultural Laborers in Eretz Yisrael. Weitz married Ruhama and their eldest son, Ra'anan, was born in 1913. Two years later, in 1915, Yosef Weitz was appointed foreman of the Sejera training farm (now Ilaniya) in the Lower Galilee. Weitz helped to found Yavniel, one of the first pioneer colonies in the Galilee, and later, the Beit Hakerem neighborhood in Jerusalem. His son Yehiam (Hebrew for "long live the nation"), born in Yavne'el in October 1918, was killed in a Palmach operation known as the Night of the Bridges on June 16, 1946. Kibbutz Yehi'am was established in his memory. Sharon Weitz, another son, followed in his father's footsteps and later took over as director of the Forestry Department.
Both the Ma'ale Yosef Regional Council and Moshav Talmei Yosef are named in the memory of Yosef Weitz.