Abadín is a municipality in the province of Lugo, Galicia, Spain. It covers 196,1 km² and has a population of 3,250 (2004) for a population density of 16.57/km².
The municipality is located in the Terra Chá country, it is crossed by the mountainous areas of the Xistral and Neda and the Labrador and Abadín rivers. Average altitude is about 500 m, but the point of greatest altitude is Lombo Pequeno at 1,015 m.
Alfred