Kujō Yoritsune (九条 頼経, 12 February 1218 – 1 September 1256, r. 1226–1244), also known as Fujiwara no Yoritsune (藤原 頼経), was the fourth shōgun of the Kamakura shogunate of Japan.

[1] His father was kanpaku Kujō Michiie and his grandmother was a niece of Minamoto no Yoritomo.

The Kujō family was one of the five branches of the historically powerful Fujiwara clan of courtiers.

At the age of seven, in 1226, Yoritsune became Sei-i Taishōgun in a political deal between his father and the Kamakura shogunate regent Hōjō Yoshitoki and Hōjō Masako who set him up as a puppet shogun.

The years in which Yoritsune was shogun are more specifically identified by more than one era name or nengō.