Buna village is a small village at the confluence of the Buna river and Neretva river some 10 km downstream the Neretva and south of Mostar, Herzegovina-Neretva Canton, Bosnia and Herzegovina.
The famous source of the Buna river (Vrelo Bune) is a strong karstic spring. The Buna river flows west from its source for approximately 9 kilometres and joins the Neretva near the village Buna.
Coordinates: 43°15′26″N 17°53′11″E / 43.25722°N 17.88639°E