Alfonso V may refer to:
Alfonso V of León (999–1028)
Alfonso V of Aragon (1416–1458), The Magnanimous
Afonso V of Portugal (1432–1481), The African
Alfonso V may refer to: Alfonso V of León (999–1028) Alfonso V of Aragon (1416–1458), The Magnanimous Afonso V of Portugal (1432–1481), The African