Muladí were the native population of the Iberian Peninsula who adopted Islam after the Muslim conquest of the Iberian Peninsula in the early 8th century. The demarcation of muladíes from the population of Arab and Berber extraction was relevant in the first centuries of Islamic rule, however, by the 10th century, they diluted into the bulk of the society of al-Andalus. In Sicily, Muslims of local descent or of mixed Arab, and Sicilian origin were also sometimes referred to as Muwallad. They were also called Musalimah ('Islamized'). In broader usage, the word muwallad is used to describe Arabs of mixed parentage, especially those not living in their ancestral homelands.

The Iberian Peninsula, also known as Iberia, is a peninsula in South-western Europe, defining the westernmost edge of Eurasia. It is divided between Continental Portugal and Peninsular Spain, comprising most of the region, as well as Andorra, Gibraltar, and a small part of Southern France. With an area of approximately 583,254 square kilometres (225,196 sq mi), and a population of roughly 55 million, it is the second-largest European peninsula by area, after the Scandinavian Peninsula.