Tarvasjoki () is a former municipality in the region of Southwest Finland, in Finland. It was merged with the municipality of Lieto on 1 January 2015. The municipality had a population of 1,959 (30 November 2014) and it covered an area of of which was water. The population density was . The municipality was unilingually Finnish. Name The name part joki means "river". The Tarvas part of the name originally referred to wild animals that were hunted, for example aurochs (wild cattle) and roe deer. Villages Eura, Horrinen, Hungerla, Jauhola, Juva, Kallela, Karhula, Killala, Kirkonkylä, Kättylä, Liedonperä, Mäentaka, Satopää, Seppälä, Suitsula, Suurila, Takamaa, Tiensuu, Tuomarla, Tuorila, Tyllilä, Yrjönkylä. Famous people from Tarvasjoki Gustaf Mauritz Armfelt, (1757 in Juva, Tarvasjoki – 1814) a Finnish-Swedish-Russian courtier and diplomat. References External links Tarvasjoki Populated places established in 1869 Former municipalities of Finland 1869 establishments in the Russian Empire