| Željeznica | |
| Mouth Location: | Adriatic Sea |
| Mouth Coordinates: | 42.1058°N 19.0878°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Montenegro |
| Length: | 19.5km (12.1miles) |
The Željeznica (Serbian: Жељезница) is a river in Bar municipality of Montenegro. In Šušanj it flows into Adriatic Sea. It is a perennial river which has tributaries from mountains Small Rumija and Sutorman.[1] When Montenegrin army captured Bar from the Ottoman Empire in 1878 the Berlin Congress set the border between Austria-Hungary and Kingdom of Montenegro at the river Željeznica.[2]