| Official Name: | Ribnica |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Slovenia |
| Subdivision Type: | Country |
| Subdivision Name: | Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Name1: | Lower Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Lower Sava |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Brežice |
| Area Total Km2: | 2 |
| Population As Of: | 2020 |
| Population Total: | 115 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.8634°N 15.6665°W |
| Elevation M: | 222.3 |
| Footnotes: | [1] |
Ribnica (in Slovenian pronounced as /ˈɾiːbnitsa/) is a settlement on the right bank of the Sava River in the Municipality of Brežice in eastern Slovenia, close to the border with Croatia. The area is part of the traditional region of Lower Carniola. It is now included with the rest of the municipality in the Lower Sava Statistical Region.[2]
The name Ribnica was originally a hydronym derived from the common noun riba 'fish', thus referring to a stream with many fish and, by extension, a settlement along such a stream.[3]
Archaeological excavations in the area have revealed building foundations of a small temple and other buildings; remains of a hypocaust, a well, and a burial ground point to the site of a Roman mansio on the Roman road from Emona to Siscia. The settlement was known as Romula.[4]