Sidi Abderrahman el Majdoub (Arabic: عبد الرحمان المجذوب‎, March 1506 – 26 May 1568), also transcribed as Mejdub, full name al-Shaykh Abu Zayd Abderrahman al-Majdoub ibn Ayyad ibn Yaacub ibn Salama ibn Khashan al-Sanhaji al-Dukkali, was a Moroccan poet, Sufi and mystic. Many lines of his poems are known throughout the Maghreb, and his work is the source of many proverbs (e.g. "doubt is the beginning of wisdom").