| Official Name: | Ostrožnica |
| Pushpin Map: | Slovakia |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Slovakia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Prešov Region |
| Subdivision Type2: | Districts |
| Subdivision Name2: | Snina District |
| Population As Of: | 2001 |
| Population Total: | 0 |
| Population Density Km2: | 0 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Coordinates: | 49.0597°N 22.2422°W |
Ostrožnica is a former Ruthenian village in eastern Slovakia, within Snina District. The first mention of the village was in 1585. The village originally belonged to the noble families of Humenné, later given to some other noble families. The village was destroyed in 1986 to make way for the Starina reservoir, along with six other villages. The only things remaining are a World War I cemetery and the village cemetery. The territory now lies within Poloniny National Park.