Don Álvaro is a municipality in the province of Badajoz, in the Extremadura region of western Spain. It lies within the comarca of Tierra de Mérida – Vegas Bajas, near the city of Mérida, the regional capital of Extremadura.
The municipality is small and rural, with a population recorded as 758 inhabitants in the 2012 census by Spain's National Statistics Institute (INE). Like much of the surrounding area in the province of Badajoz, it forms part of the sparsely populated countryside of inland Extremadura.