Sayyid Khalifa bin Harub Al-Busaid (August 26, 1879 - October 9, 1960) was the ninth Sultan of Zanzibar. He ruled Zanzibar from December 9, 1911 to October 9, 1960.

In 1900 he married Princess Sayyida Matuka bint Hamud Al-Busaid, daughter of the seventh Sultan of Zanzibar and sister of the eighth Sultan.