Lamassu are human headed, eagle winged, bulls or lions that once protected cities in Mesopotamia. They were believed to be very powerful creatures, and served both as a clear reminder of the king's ultimate authority and as symbols of protection for all people.
Lamassu frequently appear in Mesopotamian art and mythology.
The first recorded Lamassu comes from circa 3,000 BC. Other names for Lamassu are Lumasi, Alad, and Shedu. Sometimes a Lamassu is portrayed as a female deity, but usually it is presented with a more masculine head.
The female Lamassu were called Apsasu.