Pelješac is a peninsula in southern Dalmatia in Croatia. The peninsula is part of the Dubrovnik-Neretva County and is the second largest peninsula in Croatia. From the isthmus that begins at Ston, to the top of Cape Lovišta, it is 65 km or 40 mi long.
The name Pelješac is most likely derived from the name of a hill above the town of Orebić, which is Pelisac. This is a relatively new name for the peninsula. Throughout history, other names have been used such as Stonski Rat, Puncta Stagni, Ponta di Stagno and Sabbioncello.
The Bay of Mali Ston separates the peninsula from the Klek peninsula of Bosnia and Herzegovina and from the Croatian "mainland". The Strait of Pelješac is located at its far western end and divides the peninsula from the island of Korčula. On the west part of the peninsula is the highest summit of Pelješac, 961 m or 3,153 ft.
An additional connection between Pelješac and the mainland is planned to be created through the proposal of the Pelješac Bridge. Once completed, this bridge would physically connect all of Croatia, which is now interrupted by the strip of land belonging to Bosnia and Herzegovina at Neum municipality.
The land mass that cuts Dalmatia, Croatia in two, in order to grant Bosnia and Herzegovina sea access. The start of construction has been continuously delayed until shipping rights and boundaries can be properly defined between the two countries.