| En Name: | Tsivilsk |
| Ru Name: | Цивильск |
| Loc Name1: | Ҫӗрпӳ |
| Loc Lang1: | Chuvash |
| Coordinates: | 55.8667°N 76°W |
| Map Label Position: | bottom |
| Image Coa: | Coat of Arms of Civilsk (Chuvashia).svg |
| Federal Subject: | Chuvash Republic |
| Adm District Jur: | Tsivilsky District |
| Adm Selsoviet Jur: | Tsivilskoye |
| Adm Selsoviet Type: | Urban settlement |
| Adm Ctr Of1: | Tsivilsky District |
| Adm Ctr Of2: | Tsivilskoye Urban Settlement |
| Inhabloc Cat: | Town |
| Mun District Jur: | Tsivilsky Municipal District |
| Urban Settlement Jur: | Tsivilskoye Urban Settlement |
| Mun Admctr Of1: | Tsivilsky Municipal District |
| Mun Admctr Of2: | Tsivilskoye Urban Settlement |
| Representative Body: | Assembly of Deputies |
| Representative Body Ref: | [1] |
| Pop 2010Census: | 13479 |
| Established Date: | 1589 |
| Current Cat Date: | 1781 |
| Dialing Codes: | 83545 |
| Website: | http://gov.cap.ru/Default.aspx?gov_id=477 |
Tsivilsk (Russian: Циви́льск; Chuvash: Çӗрпӳ, Śĕrpü) is a town and the administrative center of Tsivilsky District of the Chuvash Republic, Russia, located 37km (23miles) from the republic's capital city of Cheboksary, at the crossroads of the highways from Nizhny Novgorod to Kazan and from Tsivilsk to Ulyanovsk. Population:
The original fortress at Tsivilsk was founded in 1589 as a Russian military outpost among the Chuvash population.[2]
Within the framework of administrative divisions, Tsivilsk serves as the administrative center of Tsivilsky District.[3] As an administrative division, it is incorporated within Tsivilsky District as Tsivilskoye Urban Settlement. As a municipal division, this administrative unit also has urban settlement status and is a part of Tsivilsky Municipal District.[4]
There is a 350m (1,150feet) tall guyed mast used for FM- and TV-broadcasting in the town.