Ahlamu or Aḫlamū, were a group or designation of Semitic semi-nomads. Their habitat was west of the Euphrates, between the mouth of the Khabur and Palmyra. They were first mentioned in the sources since Rim-Anum (18th century BC), a king of Uruk, and in texts from Mari; then, in the 14th century BC in Egyptian sources, in one of the Amarna letters, in the days of Akhenaten, where it is affirmed that they had advanced until the Euphrates.