The Pelješac Bridge is a cable-stayed bridge in Dubrovnik-Neretva County, Croatia. The bridge provides a fixed link from the southeastern Croatian semi-exclave to the rest of the country while bypassing Bosnia and Herzegovina's short coastal strip at Neum. The bridge spans the sea channel between Komarna on the northern mainland and the peninsula of Pelješac, thereby passing entirely through Croatian territory and avoiding any border crossings with Bosnia and Herzegovina at Neum.

A cable-stayed bridge has one or more towers, from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines. This is in contrast to the modern suspension bridge, where the cables supporting the deck are suspended vertically from the main cable, anchored at both ends of the bridge and running between the towers. The cable-stayed bridge is optimal for spans longer than cantilever bridges and shorter than suspension bridges. This is the range within which cantilever bridges would rapidly grow heavier, and suspension bridge cabling would be more costly.