Guimarães (Portuguese pronunciation: [ɡimɐˈɾɐ̃jʃ]) is a northern Portuguese city located in the district of Braga, in the Ave Subregion (one of the more industrialized subregions of the country), with a population of 158 124 inhabitants, distributed throughout 20 parishes (freguesias in Portuguese), in an urban area of 23,5 km² with a population density of 2 223,9/km².

It is the seat of a municipality with an area of 241,05 km² and 162 636 inhabitants (2008), divided in 69 parishes. The municipality is bordered to the north by the municipality of Póvoa de Lanhoso, to the east by Fafe, to the south by Felgueiras, Vizela and Santo Tirso, to the west by Vila Nova de Famalicão and the northwest by Braga.

It is an historical city that had an important role in the formation of Portugal and it was settled in the 9th century, at which time it was called Vimaranes. This denomination might have had its origin in the warrior Vímara Peres, when he chose this area as the main government seat for the County of Portugal which he conquered for the Kingdom of Galicia.