Tongulakh (Russian: Тонгулах) is a rural locality (a selo) in Maltaninsky Rural Okrug of Gorny District in the Sakha Republic, Russia, located 258 kilometers (160 mi) from Berdigestyakh, the administrative center of the district, and 70 kilometers (43 mi) from Keptin, the administrative center of the rural okrug. Its population as of the 2010 Census was 10; 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 −62.7 °C (−80.9 °F) was recorded at Tongulakh, an all-time low for the area and the lowest in Russia since February 2002.

• Official website of the Sakha Republic. Registry of the Administrative-Territorial Divisions of the Sakha Republic. Gorny District. (in Russian)}
• Государственное Собрание (Ил Тумэн) Республики Саха (Якутия). Закон №173-З №353-III от 30 ноября 2004 г. «Об установлении границ и о наделении статусом городского и сельского поселений муниципальных образований Республики Саха (Якутия)», в ред. Закона №1058-З №1007-IV от 25 апреля 2012 г. «О внесении изменений в Закон Республики Саха (Якутия) "Об установлении границ и о наделении статусом городского и сельского поселений муниципальных образований Республики Саха (Якутия)"». Вступил в силу со дня официального опубликования. Опубликован: "Якутия", №245, 31 декабря 2004 г. (State Assembly (Il Tumen) of the Sakha (Yakutia) Republic. Law #173-Z No. 353-III of November 30, 2004 On Establishing the Borders and on Granting the Urban and Rural Settlement Status to the Municipal Formations of the Sakha (Yakutia) Republic, as amended by the Law #1058-Z No. 1007-IV of April 25, 2012 On Amending the Law of the Sakha (Yakutia) Republic "On Establishing the Borders and on Granting the Urban and Rural Settlement Status to the Municipal Formations of the Sakha (Yakutia) Republic". Effective as of the day of the official publication.).