Mohammed al-Duayf () or Abu abd Allah Mohammad Al-murabit ben Abd as-Salam ben Ahmed ben Muhamad al-Duayyif al-Ribati (born Rabat, Morocco 1752) was a Moroccan writer. He is the author of Tarikh al Du'ayyif, a source on the life of Sultan Mohammed ben Abdallah (1757âÂÂ1790).