|Main source||Julian Alps, south of Mount Mangart|
Soča River, southeast of Bovec|
|Progression||Soča→ Adriatic Sea|
The Koritnica (pronounced [kɔˈɾiːtnitsa]; Italian: Coritenza), with a length slightly over 16 kilometers (9.9 mi), is a right tributary of the Soča River. It flows west through the Log Koritnica Valley (Slovene: Loška Koritnica) south of Mount Mangart and then turns south near Log pod Mangartom, flowing past the Kluže Fortress and through the 70-meter (230 ft) deep and 200-meter (660 ft) long Kluže Canyon (korita Kluže), also known as the Koritnica Canyon (korita Koritnice). It empties into the Soča southeast of Bovec.
- Pavan, Camillo. 1997. Caporetto: storia, testimonianze, itinerari. Treviso: author, p. 450.
- The Koritnica River on Geopedia
- Turistično informacijski center Bovec: Reka Koritnica.