Porvoo is a city and a municipality in the Uusimaa region, Finland, situated on the southern coast about 35 kilometres east of the city border of Helsinki and approximately 50 kilometres from the city centre. It is one of the six medieval towns in Finland, first mentioned as a city in texts from the 14th century. Porvoo is the seat of the Swedish-speaking Diocese of Borgå of the Evangelical Lutheran Church of Finland. Porvoo was capital of the former Eastern Uusimaa region.
The Porvoo Old Town is a popular tourist destination, known for its well-preserved 18th and 19th century buildings and 15th century cathedral, the Porvoo Cathedral. The Old Town together with Porvoonjoki River Valley is recognized as historically and culturally significant as one of the National landscapes of Finland. Porvoo is internationally considered to be one of the most beautiful towns in Finland. Porvoo also enjoys the reputation of one of Finland's most popular summer towns, both in Finland and abroad.
The municipality's official languages are Finnish and Swedish. In 2014, 64.6% of the population spoke Finnish as their native language, while 30.1% were Swedish speakers.