Elisha Netanyahu (Hebrew: אֱלִישָׁע נְתַנְיָהוּ‎; December 21, 1912 – April 3, 1986) was an Israeli mathematician specializing in complex analysis. Over the course of his work at the Technion he was the Dean of the Faculty of Sciences and established the separate Department of Mathematics. Historian Benzion Netanyahu was his brother and Benjamin Netanyahu, former Prime Minister of Israel was his nephew.