Moimenta da Beira (European Portuguese pronunciation: [mojˈmẽtɐ ðɐ ˈβɐjɾɐ] ⓘ) is a municipality in the northern part of Portugal, located in the district of Viseu.

[2][3] Moimenta's history is fairly recent: Alfonso III of Asturias conquered Lamego from the Moors, when the first settlements along the Douro began by remnants of Visigothic tribes.

[4] These bands created rural villages and homes that received in their local dialects the names Leomil, Baldos, Alvite, Toitam, Milieu, Segões, Sever and Ariz.[4] The inhabitants of the mountains and castros, such as Pêra, Caria and São Félix, began to descend into the valleys, abandoning the rudimentary and fragile fortifications to work in the towns for the signeurial masters.

[4] After the 14th century, as the management of rural territories necessitated an administrative authority, eight municipalities were established in the region, which extended into the 19th century: Paçô; Nagosa e Castelo; Sever e Alvite; Pêra e Peravelha; Ariz e Peva; and Moimenta (then known as Moimenta de São João Baptista de Leomil), were formed at the expense of Leomil.

The municipality is bounded by Tabuaço the northeast, Sernancelhe in the southeast, Sátão in the south, Vila Nova de Paiva in the west and Tarouca and Armamar in the northwest.