| En Name: | Suoyarvi |
| Ru Name: | Суоярви |
| Loc Name1: | |
| Other Lang: | Karelian/Finnish |
| Coordinates: | 62.0833°N 53°W |
| Map Label Position: | right |
| Image Coa: | Coat of Arms of Suoyarvi.svg |
| Federal Subject: | Republic of Karelia |
| Adm Data As Of: | April 2013 |
| Adm District Jur: | Suoyarvsky District |
| Adm Ctr Of: | Suoyarvsky District |
| Inhabloc Cat: | Town |
| Mun Data As Of: | April 2013 |
| Mun District Jur: | Suoyarvsky Municipal District |
| Urban Settlement Jur: | Suoyarvskoye Urban Settlement |
| Mun Admctr Of1: | Suoyarvsky Municipal District |
| Mun Admctr Of1 Ref: | [1] |
| Mun Admctr Of2: | Suoyarvskoye Urban Settlement |
| Pop 2010Census: | 9766 |
| Established Date: | 1589 |
| Established Title: | First mentioned |
| Current Cat Date: | 1940 |
| Website: | http://suojarvi-gp.ucoz.ru |
| Date: | July 2013 |
Suoyarvi (Russian: Суоя́рви; Karelian: Suojärvi; Finnish: Suojärvi) is a town and the administrative center of Suoyarvsky District of the Republic of Karelia, Russia, located 140km (90miles) northwest of Petrozavodsk. Population:
It is known that during the 16th and 17th centuries a settlement existed here known as Shuyezersky pogost (a Russian form of the local Karelian name, meaning "swampy lake"). The first documented mention dates from 1589 when Suoyarvi is recorded as church community controlled by the Orthodox community of Sortavala. In 1630, Suoyarvi became an independent community.
An outcome of the Winter War was that most of West Karelia was occupied by the Soviet Union in 1940, when Suoyarvi was granted town status. In August 1941, the territory was re-occupied by Finnish troops, but as part of the wider post-war settlement, it reverted to the Soviets in 1944; it was the second largest territory by area (after Petsamo) ceded by Finland to the Soviet Union following the Continuation War. Before the occupation, Suoyarvi was geographically the easternmost municipality of Finland.[2]
Suoyarvi had its own dialects of the Karelian language before the area was ceded to the Soviet Union and its inhabitants were relocated to other parts of Finland. Most of the Karelian people in the former municipality spoke a variety of South Karelian (suvikarjala), while the villages in the Hyrsylä (Khyursyulya) salient, which also included Ignoila (Ignoyla) and Hautavaara (Khautavaara), spoke a Livvi dialect instead.[3]
Within the framework of administrative divisions, Suoyarvi serves as the administrative center of Suoyarvsky District, to which it is directly subordinated.[4] As a municipal division, the town of Suoyarvi is incorporated within Suoyarvsky Municipal District as Suoyarvskoye Urban Settlement.[5]
The town serves as a railway junction along the railway line linking Helsinki with St. Petersburg and Petrozavodsk. From Suoyarvi, a line branches off to Yushkozero and Kostomuksha. In the Cold War it was the nearest town to the Maysionvara airbase.