Thyamis
| Thyamis | |
|---|---|
| Location | |
| Country | Greece | 
| Physical characteristics | |
| Mouth | |
|  • location | Ionian Sea | 
|  • coordinates | 39°35′12″N 20°8′32″E / 39.58667°N 20.14222°E | 
| Length | 115 km (71 mi) | 
| Basin size | about 1,800 km2 (690 sq mi) | 
The Thyamis (Greek: Θύαμις), also known as Glykys (Γλυκύς) or Kalamas (Καλαμάς), is a river in the Epirus region of Greece. The 115 km (71 mi) long, river flows into the Ionian Sea while on its course it drains an area of about 1,800 km2 (690 sq mi), over 99% of which on Greek territory. Thyamis in ancient Greece was mentioned by Pausanias as forming the boundary between Thesprotis and Kestrine. In addition, Suda and Ptolemaeus mentioned it.