Rautjärvi () is a municipality of Finland. It is located in the province of Southern Finland and is part of the South Karelia region. The municipality has a population of () and covers an area of of which is water. The population density is . More than half of Rautjärvi's residents live in Simpele, the administrative center of municipality. The neighboring municipalities of Rautjärvi are Parikkala and Ruokolahti, while to the east is the Russian border. The municipality is unilingually Finnish. Rautjärvi is mostly well known as the birthplace of legendary sniper Simo Häyhä, a hero of the Winter War of World War II. History Rautjärvi was first mentioned in 1560 as Rauda Järffui as one of the villages of Jääski. It became a part of the Ruokolahti parish after its establishment in 1572. The municipality of Rautjärvi was founded in the year of 1861. A few years prior in 1859, the Rautjärvi parish had founded an independent church. After the Winter War ended with the signing of the Moscow Peace Treaty on March 12, 1940, almost half of Rautjärvi (198.9 km2) was handed over to the Soviet Union in accordance with the treaty. The municipality of Simpele was consolidated with Rautjärvi in 1973, becoming its new administrative center. Rautjärvi's wooden church, completed in 1881, was destroyed in a fire on Christmas Day in 2022. The fire broke out in the middle of the worship, but all 30 people in the building got out safely. Villages The villages of Rautjärvi are inclusive of: Haakanala, Hallilanmäki, Hiivaniemi, Hinkkala, Hynnilä, Ilmee, Jurvala, Kalpiala, Kekäleniemi, Kokkola, Kopsala, Korjola, Korpijärvi, Lankila, Latvajärvi, Miettilä, Niskapietilä, Partila, Pirhola, Purnujärvi, Rautjärvi, Siisiälä, Simpele, Torsansalo, Uimola, Untamo, Viimola, Vähikkälä Noteworthy attractions Hiitolanjoki, a river that descends from Lake Ladoga Haukkavuori, the highest place in South Karelia Iivanansaari, an island which also serves as the burial place of Jussi Reinikainen Pirunkirkko, several rock and stone formations Laiko Miettilä Historical Reserve Garrison, historic barracks which were constructed in the years of 1881–1883. Rautjärvi local history exhibition Kollaa Museum, a museum which documents the Battle of Kollaa Niskapietiläntie, a road connecting the villages of Rautjärvi and Miettilä Rautjärvi church, completed in the year of 1881 Simpele church, completed in the year of 1933 Notable individuals Hannes Pulkkinen, elementary school teacher and a Member of the Parliament of Finland Jesse Joronen, professional footballer who plays as a goalkeeper for Serie B club