This article examines the prominent role and effective contributions of the Andalusians (Moriscos) in reviving and developing maritime activity in the Islamic Maghreb during the seventeenth century, following the severe sociopolitical transformations and persecution they endured in the Iberian Peninsula. The research begins by shedding light on the political, religious, and ideological drivers behind the Spanish Edict of Expulsion, alongside the fierce resistance manifested in Morisco uprisings across the Muela de Cortés and La Horra (Laguar) mountain ranges in defense of their identity and existence. Furthermore, the paper traces the trajectory of the final expulsion (1609–1614) and Morisco migration to the Maghreb, focusing on their strategic settlement across North African coastal urban centers. The core of the study highlights the active engagement of this incoming elite within the military, naval, and economic structures of the Maghrebi states, emphasizing their distinct footprint in bolstering the Algerian corsair navy, developing naval shipyards and autonomous fleet operations in Morocco (notably the Republic of Salé), and enhancing the defensive, artillery, and commercial capabilities of the Tunisian navy. Ultimately, this repositioned the Moriscos as a pivotal axis in Mediterranean maritime geopolitics and maritime resistance (Naval Jihad).