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.

A peninsula is a landform that extends from a mainland and is surrounded by water on most sides. Peninsulas exist on all continents. The largest peninsula in the world is the Arabian Peninsula.