Tui (Galician pronunciation: [ˈtuj]; Spanish: Tuy) is a municipality in the province of Pontevedra, in the autonomous community of Galicia, Spain.

The municipality of Tui is composed of 11 parishes: Randufe, Malvas, Pexegueiro, Areas, Pazos de Reis, Rebordáns, Ribadelouro, Guillarei, Paramos, Baldráns and Caldelas.

Evidence of this are the sites found during construction of the highway Vigo-Tui, on the border with Porriño, dating from the Lower Paleolithic period which was the oldest in Galicia.

The fertile valley of the Minho and its magnificent natural conditions allowed the Tudense territory to accommodate human settlement from the earliest times.

The introduction of metallurgy (4,000 BC) left testimonies like the helmet of bronze Caldelas axes (now in the Tudense Diocesan Museum) or engravings of Randufe.