Abu Marwan Abd al-Malik I (Arabic: أبو مروان عبد الملك الغازي‎‎), often simply Abd al-Malik or Mulay Abdelmalek (died 4 August 1578), was the Saadi Sultan of Morocco from 1576 until his death right after the Battle of Ksar El Kebir against Portugal in 1578.

Abd al-Malik was one of the sons of the Saadi Sultan Mohammed ash-Sheikh, who was assassinated by the Ottomans in 1557 by order of Hasan Pasha, son of Barbarossa, as he was preparing for an alliance with Spain against the Ottomans.

One of his brothers Abdallah al-Ghalib (1557–1574) then took power and ascended to the throne. He planned to eliminate his other brothers in the process. Abd al-Malik had to escape from Morocco and stay abroad until 1576, together with his elder brother Abdelmoumen and his younger brother Ahmed.

Abd al-Malik spent 17 years among the Ottomans with his brothers, most of the time in Algeria, benefiting from Ottoman training and contacts with Ottoman culture. Abdelmoumen was named governor of the city of Tlemcen by the ruler of the Regency of Algiers, Hasan Pasha, but Abdelmoumen was assassinated there in 1571.

Abd al-Malik visited Istanbul on several occasions. He went to the Ottoman capital in July 1571, and then was involved with his brother al-Mansur in the Battle of Lepanto on the Ottoman side on 7 October 1571. He was captured during the battle and transported to Spain and then brought before the Spanish king Philip II. The Spanish king decided, upon the advice of Andrea Gasparo Corso, to hold him captive in the Spanish possession of Oran, in order to use him when the opportunity arose. Abd al-Malik however managed to escape from Oran in 1573 and travelled back into the Ottoman Empire.

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