The codename of Assassin's Creed III's playable protagonist is Connor.
Connor is the name used by Ratonhnhaké:ton after he joins the Assassin Brotherhood. The character is a Kanien'kehá:ka man who becomes involved in the American Revolution and opposes Templar plans in the colonies.
Assassin's Creed III presents both Connor and his father, Haytham Kenway, as playable characters. Haytham is a Templar, while Connor becomes an Assassin, making their family relationship central to the story.
Ratonhnhaké:ton is Connor's birth name, so answers can become confused if a question asks for his full identity. The game commonly uses “Connor” as his English codename and main playable name.