Arroyomolinos de León is a town and municipality in the province of Huelva, in the Andalusia region of southern Spain. It is one of the municipalities that make up the Andalusian province of Huelva, which lies in the western part of the region near the border with Portugal.
According to the 2010 census, the municipality had a population of 1,046 inhabitants. As a municipality, it covers both the town itself and the surrounding area under a single local administration, a common structure in Spain.