Artoria Pendragon (アルトリア・ペンドラゴン, Arutoria Pendoragon?, also romanized as Arturia and Altria), Class Name Saber (セイバー, Seibā?), is one of the main characters of Fate/Zero and one of the three main heroines of Fate/stay night. She is the Saber-class Servant of Kiritsugu Emiya in the Fourth Holy Grail War and Shirou Emiya in the Fifth Holy Grail War.

Artoria is a strong-willed young woman who usually speaks truthfully but will lie if necessary. She is courageous, determined, and set on winning the Holy Grail. She constantly insists that she is a knight and king above all, and that her gender is of little importance to her and her role. She is resolute in following her own morals, regardless of the more viable, yet underhand, tactics being available. Artoria prefers direct, fair confrontations based upon codes of chivalry. Not even her hunger for the Holy Grail can make her abandon her code of honor.