| Letka | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 260km (160miles) |
| Mouth: | Vyatka |
| Mouth Coordinates: | 58.9667°N 50.2069°W |
| Basin Size: | 3680km2 |
The Letka is a river in the Komi Republic and Kirov Oblast in Russia. It is a right tributary of the Vyatka. The river is 260km (160miles) long, and its drainage basin covers 3680km2.[1] The Letka is navigable along its lower reaches.