What is the full name of Assassin's Creed Origins protagonist Bayek?

The full name of Assassin's Creed Origins protagonist is Bayek of Siwa.

Bayek is a Medjay, a protector and lawkeeper from the Siwa Oasis in ancient Egypt. The game follows his investigation into a conspiracy that harms his family and eventually leads to the formation of the Hidden Ones, the organization that becomes the Assassin Brotherhood.

Assassin's Creed Origins is set during the first century BCE, chiefly under the rule of Ptolemy XIII. Its world includes Siwa, Alexandria, Memphis, the Nile Delta, and other regions of Egypt. Bayek's wife, Aya, is also central to the story and its political conflicts.

The phrase “of Siwa” identifies Bayek's home and is part of the character's standard name. He is therefore distinct from later protagonists such as Kassandra, Eivor, and Basim, who belong to different historical periods.