Buna, Mostar
Buna is a populated settlement 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 is a strong karstic spring. The Buna river flows west from its source for approximately 9 kilometres and joins the Neretva near this village that has taken its name from the river.
Demographics
According to the 2013 census, its population was 1,291.| Ethnicity | Number | Percentage |
| Croats of [Bosnia and Herzegovina|Croats] | 1,120 | 86.6% |
| Bosniaks | 149 | 11.5% |
| Serbs | 2 | 0.2% |
| other/undeclared | 20 | 1.5% |
| Total | 1,291 | 100% |