Kujō family (Japanese: 九条家, Hepburn: Kujō-ke) is a Japanese aristocratic kin group.

[4] After the fall of the Taira clan in 1185, Kanezane became Sesshō and Kampaku with the support from Minamoto no Yoritomo;[5] Kanezane then founded an independent family as of 1191,[6] and the family name Kujō was named after a residence located on the road "Kujō-Ōji" (九条大路), where his family lived, built by his ancestor, Fujiwara no Mototsune.

[7] Since then, the Kujō became one of the five Fujiwara families from which the Sesshō and Kampaku could be chosen, later known as the five regent houses.

[8] After the Meiji Restoration, members of the Kujō clan were elevated to princedom and given the title Prince.

The kanji used in the family name was originally "靏殿" but later changed to "鶴殿", both names are pronounced "Tsurudono".