Kujo Yoritsune (九条 頼経 Kujō Yoritsune) (February 12, 1218–September 1, 1256) was the fourth shogun (r. 1226–1244) of the Kamakura shogunate of Japan. His father was kampaku Kujo Michiie and his grandmother was a niece of Minamoto no Yoritomo. He was born in the year (according to Chinese astrology) of the tiger, in the month of the tiger,　on the day of the tiger, and so his given name at birth was Mitora(三寅), "Triple Tiger."

Kujo Yoritsune is also known as Fujiwara no Yoritsune, the Kujo family having been one of the five branches of the historically powerful Fujiwara clan of courtiers.

At the age of seven, in 1226, Yoritsune became Seii Taishogun in a political deal between his father and the shogunate regent Hojo Yoshitoki and Hojo Masako who set him up as a puppet shogun.

In 1244, he relinquished the position of shogun to his son Kujo Yoritsugu. In the next year, he became a Buddhist priest.