| Birlya | |
| Name Etymology: | Tatar or Finno-Ugric |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Subdivision Type2: | Region |
| Subdivision Name2: | Republic of Tatarstan |
| Length: | 48km (30miles) |
| Mouth: | Sviyaga |
| Basin Size: | 385km2 |
The Birlya (Russian: Бирля; Tatar: Бәрле), a tributary of the Sviyaga, is a river in the Republic of Tatarstan in Russia. The name has its origin from the Tatar language words bure and ile which mean "the river on the place of wolves" or Finno-Ugric languages word hop. There is information that Cheremisa people (Mari people) used to raise hop.
The Birlya is 48km (30miles) long, and its drainage basin covers 385km2.[1] The Birlya begins south of a village Bolshoe Podberezye, 3 km away. It flows into the Sviyaga, north of the village Burunduki. This river is 5m-8mm (16feet-26feetm) wide. As for hydrology, it is a low river. Flow distribution is irregular.
This river is used by locals for daily living needs, as a drinking place of a nowt. It has been recognized as natural landmark since 10 January 1978.