Buinsk is a name shared by several inhabited localities within Russia. The most prominent among these is an urban locality located in the Republic of Tatarstan, where it holds the status of a town of republic significance.
Additionally, there are two other locations with this name situated in the Chuvash Republic. One is an urban-type settlement located in the Buinskoye Rural Settlement of the Ibresinsky District, while the other is a village found in the Kovalinskoye Rural Settlement of the Urmarsky District.