Guadamur is a municipality in the province of Toledo, in the autonomous community of Castile-La Mancha, Spain. It lies in the central part of the country, within the broader Toledo region south of Madrid.
According to the 2008 census conducted by Spain's National Statistics Institute (INE), the municipality had a population of 1,819 inhabitants. The town is known for the Castillo de Guadamur, a 15th-century castle that is among the notable historic landmarks of the province of Toledo.