Allaikha

General data
- Water type: River
- Progression: Indigirka -> East Siberian Sea -> Arctic ocean -> Planet Earth
- Climates: Continental, Subpolar
- Continents: Asia
- Countries: Russia
Description
The Allaikha (Russian: Алла́иха; Yakut: Аллайыаха, Allayıaxa) is a river of Sakha Republic, Russia, a left hand tributary of the Indigirka. It is 563 kilometres long, and has a drainage basin of 12,400 square kilometres.