Rabbi Aaron Teitelbaum (born October 1947) is one of two Grand Rebbes of Satmar, and the chief rabbi of the Satmar community in Kiryas Joel, New York. He is the elder son of Grand Rabbi Moshe Teitelbaum, the late Satmar Rebbe of Williamsburg, Brooklyn, who was the nephew of the late Satmar Rebbe, Grand Rabbi Joel Teitelbaum, who founded the village of Kiryas Joel in the town of Monroe, New York. Rabbi Teitelbaum is the son-in-law of Grand Rabbi Moshe Yehoshua Hager, the Viznitzer Rebbe of Bnei Brak, Israel.