梅斯坦萨（西班牙语：Mestanza），是西班牙卡斯蒂利亚-拉曼恰雷阿尔城省的一个市镇。 总面积370平方公里，总人口865人（2001年），人口密度2人/平方公里。

Mestanza is a town in Spain, in the province of Ciudad Real, which belongs to the community or region of Castilla-La Mancha. It has a surface area of 370 km ² with a population of 821 inhabitants; population density 2.22 inhabitants/km ².

The town’s municipal district includes the villages of Hoyo and Solanilla del Tamaral. It is located south of Puertollano, in the impressive valley of Alcudia, with the Montoro reservoir within the area, close to the Sierra Madrona mountain range.