Neogene-Quaternary volcanism in Northwest Africa outlines a NE-SW intraplate volcanic corridor stretching from the Anti-Atlas through the Atlas system to the Rif and western Algeria. Volcanic activity records a transition from Miocene calc-alkaline to shoshonitic eruptive products associated with the Alboran domain, toward widespread Plio-Quaternary alkaline sodic magmatism. This evolution is linked to lithospheric thinning along the Moroccan Hot Line, where asthenospheric upwelling is enhanced by slab rollback, delamination, and edge-driven convection at the West African craton boundary. The main volcanic provinces (Anti-Atlas, Middle Atlas, Central Morocco, Saka-Guilliz, Eastern Rif, and Oujda Mount-Oranie) display diverse volcanic architectures, from stratovolcanoes and dome complexes to monogenetic fields and lava plateaus. Magmas are dominated by basanites, nephelinites, and alkaline basalts, locally evolving into trachytes and phonolites through fractional crystallization and limited crustal assimilation, and commonly showing Ocean Island Basalt; Hight-μ mantle component, characterized by a high 238U/204U (OIB/HIMU) signatures and mantle xenoliths. Fault-controlled ascent emphasizes the importance of inherited structures, while regionally elevated geothermal gradients highlight persistent thermal anomalies. Together, these features document progressive mantle-lithosphere interaction and establish a unified framework for the tectono-magmatic evolution of Northwest Africa since the Miocene.