Pupnat is a village on the island of Korčula in Croatia. Korčula, the island, is part of the Dalmatian coast and is situated within the Dubrovnik-Neretva county. Inhabitants of Pupnat consist mostly of Croatians of Slavic roots. Pupnat has a population of 439 residents. The village is situated 12 kilometres west of the old town of Korčula, 8 kilometres west of Žrnovo and 13 kilometres east of Čara. The beautiful bay of Pupnatska Luka is located about 4 kilometres to the southwest of Pupnat. According to some interpreters, the name Pupnat derives from "pampinata" aka vine leaves. Finds from Illyrian and Roman times have been found in the village.
Pupnat has three churches, the oldest church in Pupnat is St.George (Sveti Juraj), was first mentioned in 1383.
The most famous native of Pupnat was the 18th Century Franciscan priest, the Blessed Marko Tvrdeiċ (1733–1785). His remains were brought back from Rimini to Pupnat in 1877.
The economy of Pupnat is based on agriculture and tourism. Common Surnames within the village include - Farac, Stanišić, Tvrdeić, Vlašić, Poša, Perdija, Ciprian, Mušin, Šapić, Radovanović and Šain.