| En Name: | Balagachchy |
| Ru Name: | Балагаччы |
| Other Name: | Балаҕаччы |
| Other Lang: | Sakha |
| Coordinates: | 64.3919°N 122.2383°W |
| Map Label Position: | left |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Vilyuysky District |
| Adm Selsoviet Jur: | Togussky Rural Okrug |
| Adm Selsoviet Type: | Rural okrug |
| Adm Ctr Of: | Togussky Rural Okrug |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Vilyuysky Municipal District |
| Mun District Jur Ref: | [1] |
| Rural Settlement Jur: | Togussky Rural Settlement |
| Mun Admctr Of: | Togussky Rural Settlement |
| Pop 2010Census: | 601 |
Balagachchy (ru|Балагаччы; sah|Балаҕаччы, Balağaççı) is a rural locality (a selo), the administrative centre of and one of two settlements, in addition to Seyat, in Togussky Rural Okrug of Vilyuysky District in the Sakha Republic, Russia. It is located 110km (70miles) from Vilyuysk, the administrative center of the district. Its population as of the 2010 Census was 601,[2] of whom 288 were male and 313 female, down from 668 as recorded during the 2002 Census.[3]