Mount Hor is the name given in the Hebrew Bible to two distinct mountains. One borders the land of Edom in the area south of the Dead Sea, and the other is by the Mediterranean Sea at the Northern border of Israel. The first Mount Hor is especially significant to the Israelites, as Aaron the high priest, brother of Moses, died there.

According to Abrahamic religions, Aaron was a prophet, a high priest, and the elder brother of Moses. Information about Aaron comes exclusively from religious texts, such as the Hebrew Bible, the New Testament, and the Quran.