What is the full name of the Assassin protagonist in the original Assassin's Creed game?

The Assassin protagonist in the original Assassin's Creed game is Altaïr Ibn-La'Ahad.

Altaïr is introduced as a highly skilled Assassin operating in the Holy Land during the Third Crusade. His story follows a fall from rank, a series of missions to regain his status, and a growing understanding of the Apple of Eden and the Order's wider conflict.

The character's name is sometimes shortened to Altaïr, while the Arabic name Ibn-La'Ahad means “son of no one.” He is distinct from Ezio Auditore, who leads Assassin's Creed II, and from later protagonists such as Connor and Edward Kenway.

Altaïr also appears in later series material, especially Assassin's Creed: Revelations, where his life and legacy are connected to Ezio's final story. This makes him one of the franchise's most important recurring historical figures.