Ahmad Mashhur al-Haddad (Arabic: أحمد مشهور بن طه الحداد) was a Sunni Islamic scholar from Qaydun in Wadi Dawan, Yemen.
He followed the Ba 'Alawiyya way of teaching and spent years proselytizing in East Africa, where he contributed to the establishment of mosques and schools.
In Mukalla he met and learned from Habib Ahmad bin Muhsin al-Haddar, and from him he received his spiritual opening.
He confronted secularists and communists among Muslims who studied in schools established by colonial governments.
Thousands of people from various backgrounds including Africans, Indians, and Arabs flocked to him for his teaching, advice, and du'a.