The Grovii were an ancient tribe in Coastal Northern Portugal, in the province of Minho and spreading into modern day Galicia (Spain). The Grovii dwelt in the coast near the rivers "Avo" (the Ave river), Celadus, Nebis, Minius and the Oblivion. The Laeros and the Ulla rivers where in the North reach of this people.
Its main god was Turiacus, unlike the nearby Castro culture tribes, whose main deity was Cosus. Pomponius Mela stated that all the populi were Celtic, excepting for the Grovii. Pliny also rejected that the Grovii were Celtic, he considered them to have a Greek origin. They cooperated with the local Gallaeci tribes as seen in the aftermatch of Viriatus death. These with the Callacian tribes and following Celtic ways, with their women, wanted revenge from the death of Viriatus. They attacked the Roman settlements in Lusitania, gaining momentum with the support of other tribes along the way, reaching the south of the Peninsula, near modern Andalusia. Endangering Roman rule in large stretches of Hispania. The leading Gallaeci cities of Avobriga and Lambriaca were located near the Grovii lands.