| En Name: | Tongulakh |
| Ru Name: | Тонгулах |
| Coordinates: | 61.95°N 156°W |
| Map Label Position: | top |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Gorny District |
| Adm Selsoviet Jur: | Maltaninsky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Gorny Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Maltaninsky Rural Settlement |
| Pop 2010Census: | 10 |
Tongulakh (Russian: Тонгулах) is a rural locality (a selo) in Maltaninsky Rural Okrug of Gorny District in the Sakha Republic, Russia, located 258km (160miles) from Berdigestyakh, the administrative center of the district, and 70km (40miles) from Keptin, the administrative center of the rural okrug.[2] Its population as of the 2010 Census was 10;[3] down from 11 recorded in the 2002 Census.
The region is known for its climate extremes and is one of the coldest areas in the Northern Hemisphere. On 18 January 2023, a temperature of was recorded at Tongulakh, an all-time low for the area and the lowest in Russia since February 2002.[4]