The Young Man of Arévalo (Spanish: el Mancebo de Arévalo) was a Morisco crypto-Muslim author from Arévalo, Castile, who was the most productive known Islamic author in Spain during the period after the forced conversion of Muslims there. He traveled widely across Spain to visit crypto-Muslim communities and wrote several works about Islam which includes accounts from his travels. His real identity and dates of birth and death are unknown, but most of his travels took place in the first half of the sixteenth century.