Vințu de Jos, also known as Vinț (German: Unter-Wintz, Winzendorf, Alvinz, Weinsdorf; Hungarian: Alvinc; Latin: Binstum; Turkish: Aşağı Vinçazvar), is a commune located in the centre of Alba County, Transylvania, Romania.

It is composed of eighteen villages: Câmpu Goblii (Unter-Eisenberg; Telekvinc), Ciocașu (Zoggesch; Csókás), Crișeni (Krieschen), Dealu Ferului (Eisenberg; Vashegy), Gura Cuțului (Gurrenkutz), Hațegana (Hetzingen), Inuri (Lilienfeld; Borsómező), Laz (Slawendorf), Mătăcina (Mattatschin), Mereteu (Merethof; Merítő), Pârău lui Mihai (Michelsdorf), Poienița (Pojenitz), Stăuini (Stabing), Valea Goblii (Goblsdorf; Goblipatak), Valea lui Mihai (Michaelsdorf), Valea Vințului (Wintzbach; Valye Vinci), Vințu de Jos, and Vurpăr (Burgberg-Walbersdorf; Borberek).

Vințu de Jos has a surface of 8,527 ha (21,070 acres) and is located on the river Mureș, in the centre of Alba County, approximately 10 km (6.2 mi) from the city of Sebeș on the Romanian National Road DN7, and 15 km (9.3 mi) from the county capital, Alba Iulia on the Romanian County Road 107C and the Romanian National Road DN1.

[3] The centre of the commune, Vințu de Jos, has a large train station and houses a shoe factory.

[3] The 2002 census recorded 5,295 people living at the time in the commune, of which 5,108 (96.5%) Romanians, 90 (1.7%) Roma, 76 (1.4%) Hungarians, and 8 (0.2%) Germans.