The Segusini (Gaulish: *Segusinoi, 'those of Segusio') were a Gallic tribe dwelling around present-day Susa, in the Alpes Cottiae, during the Iron Age.
[4][5] The ethnonym Segusini is a latinized form of Gaulish *Segusinoi.
[5] The Segusini dwelled in the valley of the Duria, around Segusio (modern Susa).
[6][7] Their territory was located east of the Medulli and Belaci, south of the Acitavones, and west of the Iemerii and Taurini.
[8] Their chief town, Segusio, controlled the route over Mont Genèvre and served as the gateway into the Italian Peninsula.