SEDEH WARBURG (Heb. שְׂדֵה וַרְבּוּרְג), moshav in the southern Sharon, Israel, near Kefar Sava, affiliated with Ha-Iḥud ha-Ḥakla'i. Sedeh Warburg was founded in 1938 by middle-class immigrants and later joined by other newcomers, mainly from Poland. Farming was highly intensive and fully irrigated. In 1970 Sedeh Warburg had 380 inhabitants, increasing to about 500 in the mid-1990s and 956 in 2002. Its name commemorates the Zionist leader Otto *Warburg.