Osława

Osława
Location
CountryPoland
Physical characteristics
Source 
  locationBieszczady Mountains
Mouth 
  location
San
  coordinates
49°32′05″N 22°16′04″E / 49.5347°N 22.2678°E / 49.5347; 22.2678
Length64 km (40 mi)
Basin size507 km2 (196 sq mi)
Basin features
ProgressionSanVistulaBaltic Sea

The Osława (Czech: Oslava, German: Oslawa, Ukrainian: Ослава) is a river in South-Eastern Poland. Its name comes from the ancient west Slavic dialect word osła, meaning "stone". It begins in the Bieszczady mountains and flows through western Sanok Land. The river ultimately flows into the San near Bykowce, north of Zagórz.