Shukr ben Salim Kuhayl I (?–1865), also known as Mari (Master) Shukr Kuhayl I (Hebrew: מרי שכר כחיל), was a Yemenite messianic claimant of the 19th century. He initially revealed himself in San‘a’ in 1861 as a messenger of the Messiah at a time when messianic expectations in Yemen were ripe as a result of political turmoil. Divorcing his wife, he took up the life of an itinerant preacher to live in poverty and exhort the community to repentance. "I come to warn you and to remind you of repentance and redemption," he is reported to have said when publicly announcing his mission on a Sabbath in May 1861.