| En Name: | Lomtuka |
| Ru Name: | Ломтука |
| Coordinates: | 61.6333°N 136°W |
| Map Label Position: | right |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Megino-Kangalassky District |
| Adm Selsoviet Jur: | Tyllyminsky 1-y Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Tyllyminsky 1-y Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Megino-Kangalassky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Tyllyminsky 1-y Rural Settlement |
| Mun Admctr Of: | Tyllyminsky 1-y Rural Settlement |
| Pop 2010Census: | 701 |
| Postal Codes: | 678084 |
Lomtuka (ru|Ломтука; sah|Лоомтука, Loomtuka) is a rural locality (a selo), the only inhabited locality, and the administrative center of Tyllyminsky 1-y Rural Okrug of Megino-Kangalassky District in the Sakha Republic, Russia, located 16km (10miles) from Mayya, the administrative center of the district.[2] Its population as of the 2010 Census was 701,[3] down from 798 recorded during the 2002 Census.