| En Name: | 8-y km |
| Ru Name: | 8-й км |
| Coordinates: | 60.7167°N 140°W |
| Map Label Position: | top |
| Federal Subject: | Sakha Republic |
| Adm District Jur: | Ust-Maysky District |
| Adm Selsoviet Jur: | Eldikan |
| Adm Selsoviet Type: | Settlement |
| Inhabloc Cat: | Rural locality |
| Inhabloc Type: | Selo |
| Mun District Jur: | Ust-Maysky Municipal District |
| Mun District Jur Ref: | [1] |
| Urban Settlement Jur: | Eldikan Urban Settlement |
| Pop 2010Census: | 0 |
8-y km (ru|8-й км) is a rural locality (a selo) under the administrative jurisdiction of the Settlement of Eldikan of Ust-Maysky District in the Sakha Republic, Russia, located 56km (35miles) from Ust-Maya, the administrative center of the district, and, as the name suggests, 8km (05miles) from Eldikan.[2] Its population as of the 2010 Census was 0;[3] down from 19 recorded in the 2002 Census.