| En Name: | Yaransk |
| Ru Name: | Яранск |
| Coordinates: | 57.3167°N 101°W |
| Map Label Position: | right |
| Image Coa: | Coat of Arms of Yaransk.png |
| Federal Subject: | Kirov Oblast |
| Adm District Jur: | Yaransky District |
| Adm Selsoviet Jur: | Yaransk |
| Adm Selsoviet Type: | Town |
| Adm Ctr Of1: | Yaransky District |
| Adm Ctr Of2: | Town of Yaransk |
| Inhabloc Cat: | Town |
| Mun District Jur: | Yaransky Municipal District |
| Urban Settlement Jur: | Yaranskoye Urban Settlement |
| Mun Admctr Of1: | Yaransky Municipal District |
| Mun Admctr Of2: | Yaranskoye Urban Settlement |
| Pop 2010Census: | 17253 |
| Established Date: | 1584 |
| Current Cat Date: | 1780 |
| Postal Codes: | 612260–612263, 612269 |
Yaransk (Russian: Яра́нск; Mari: Яраҥ, Yaraň) is a town and the administrative center of Yaransky District in Kirov Oblast, Russia, located on the Yaran River (Vyatka's basin), 257km (160miles) southwest of Kirov, the administrative center of the oblast. Population:
In the Middle Ages, it had a central position in the land of Mari and served as the capital of the Mari people. In 1584, Yaransk was founded as a Russian fortress on the Yaran River where the old Mari fortress once stood to defend against the Mari. A posad later grew around the fortress. Town status was granted to Yaransk in 1780.
Within the framework of administrative divisions, Yaransk serves as the administrative center of Yaransky District.[1] As an administrative division, it is, together with eighteen rural localities, incorporated within Yaransky District as the Town of Yaransk. As a municipal division, the Town of Yaransk is incorporated within Yaransky Municipal District as Yaranskoye Urban Settlement.[2]