What is the name of the Assassin group founded in Assassin's Creed Origins?

The Hidden Ones is the Assassin group founded in Assassin's Creed Origins.

Origins follows Bayek of Siwa and Aya during the first century BCE, when Egypt is caught between local power struggles and the Roman conquest. After confronting the Order of the Ancients, Bayek and Aya create the Hidden Ones as a secret organization dedicated to protecting people from oppressive control.

The group is presented as the historical predecessor of the later Assassin Brotherhood. Its members adopt principles and practices that become central to the series, including working from the shadows and resisting domination by powerful rulers. The game therefore functions as an origin story for the fictional Assassin tradition.

The Order of the Ancients is a different organization: it is the enemy faction that predates the Templars. “The Assassins” is a familiar descriptive label, but the specific group founded in Origins is called the Hidden Ones.