Lugo is a province of northwestern Spain, in the northeastern part of the autonomous community of Galicia.

It is bordered by the provinces of Ourense, Pontevedra, and A Coruña, the principality of Asturias, the State of León, and in the north by the Cantabrian Sea (Bay of Biscay).

The capital city was an ancient Celtic settlement named in honour of the god Lugh (see Lyon), later Latinised as Lucus Augusti, and which became one of the three main important Galician-Roman centres alongside Braccara Augusta and Asturica Augusta (modern Braga and Astorga respectively).

That makes them they some grammatical and phonetic signs that are mistakenly considered influences of Castilian or of Leonese.

However, the Galician spoken in Lugo, especially in non-coastal areas, is probably the most conservative in Galicia because almost no historic pressure [citation needed] from Castilian has existed on the rural population.