Ploce is a town and a notable seaport in the Dubrovnik-Neretva county of Croatia. Ploce harbor was first mentioned on November 6, 1387, but the building of a larger port waited until the modern times. The work on the present harbor area first began in 1939 but it was all destroyed in World War II. It was rebuilt beginning with 1945 and the village of Ploce grew to 480 inhabitants by 1948. After the Adriatic road and Neretva railway lines were built to the port in the mid-1960s, the town experienced a steady growth.
The Croatian currency is the Kuna.