Aaron is a Hebrew name of uncertain meaning, usually explained as "high mountain" or "exalted". In the Bible Aaron is the older brother of Moses and the first high priest of Israel, and the name has been used by Jews and Christians alike for centuries; the composer Aaron Copland is among its best-known American bearers. Aaron ranked number 41 in the United States in 2000, its best year in this century, and has drifted gently down to number 80 among boys in 2025.