Şehzade Ömer Faruk Efendi was an Ottoman prince, the son of the last caliph of Muslim world Abdulmejid II and his first consort Şehsuvar Hanım. He was also the son-in-law of Sultan Mehmed VI of the Ottoman Empire because he married his younger daughter Rukiye Sabiha Sultan.

Abdulmejid II or Abdulmecid II was the last Ottoman caliph, the only caliph of the Republic of Turkey, and head of the Osmanoğlu family from 1926 to 1944. As opposed to previous caliphs, he used the title Halîfe-i Müslimîn, instead of Emîrü'l-Mü'minîn.