Mortágua (European Portuguese: [muɾˈtaɣwɐ] or [mɔɾˈtaɣwɐ] ⓘ) is a municipality in the district of Viseu, Portugal.

[2] The present mayor is Ricardo Sérgio Pardal, elected in 2021 by the Socialist Party.

About 1 kilometre (0.62 mi) from the main village is a hill, covered in vegetation, but whose lateral flank was occupied by a Moorish settlement known as Crasto.

[3] Over a cliff archeologists discovered several homes including a building that was defined as a kitchen, on its edge.

[3] By 1895, several chapels were situated on this hilltop, which had become known as Cabeça da Senhora do Mundo (owing to the existence of an image to that invocation).