Shu'ayb ibn Ahmad
Shu'ayb ibn Ahmad () was the eighth Emir of Crete, reigning from . The surviving records on the internal history and rulers of the Emirate of Crete are very fragmentary. He is tentatively identified as a son of the seventh emir, Ahmad ibn Umar, and as the great-great-grandson of the conqueror of Crete and founder of the emirate, Abu Hafs Umar. He is believed to have reigned from to , succeeding his father, and being succeeded by his brother, Ali.