Malborghetto Valbruna (Slovene: Naborjet-Ovčja ves; German: Malborgeth-Wolfsbach; Friulian: Malborghet-Valbrune) is a comune (municipality) in the Regional decentralization entity of Udine in Friuli-Venezia Giulia, north-east Italy.

In the north, the crest of the Carnic Alps forms the border with the Austrian state of Carinthia and the municipalities of Hermagor-Pressegger See, Sankt Stefan im Gailtal, Feistritz an der Gail, and Hohenthurn.

For centuries, German-, Romance- (Italian- and Friulian-) as well as Slavic- (Slovene)-speaking people settled in the Canal Valley, which from 1077 was ruled by the Carinthian duke Liutold of Eppenstein, while King Henry IV of Germany ceded the adjacent territory of the Imperial March of Verona in the south to the Patriarchate of Aquileia.

While the Aquileia territory was gradually conquered by Venice and incorporated into the Domini di Terraferma by 1433, the settlement then named Buonborgeth was part of the Carinthian possession held by the Prince-Bishops of Bamberg.

The village, economical relevant for its iron ore and silver deposits at Valbruna as well as for its forestry, received its current name male (evil) due to the constant border quarrels with the Serenissima.