Valea Lungă (formerly Hususău; German: Langenthal, Hungarian: Hosszúaszó) is a commune located in Alba County, Transylvania, Romania.

Is composed of six villages: Făget (Oláhbükkös), Glogoveț (Kisgalgóc), Lodroman (Lodormány), Lunca (Küküllőlonka), Tăuni (Hosszúpatak), and Valea Lungă.

The commune lies on the Transylvanian Plateau, at an altitude of 305 m (1,001 ft), in the Târnava Mare meadow.

The Lunca and Valea Lungă train stations serve the CFR main line 300, which connects Bucharest with the Hungarian border near Oradea.

A document from 1309 mentioned the existence of an archdeacon in Valea Lungă, and identified Arnold Longavalle as priest of this village.