Condemios de Abajo is a municipality in the province of Guadalajara, in the autonomous community of Castile-La Mancha, Spain. It is one of the smallest municipalities in the province by population.
According to the 2004 census carried out by Spain's National Statistics Institute (INE), the municipality had a population of 29 inhabitants. This makes it an example of the sparsely populated rural settlements found in parts of inland Castile-La Mancha.