The Porvoo Communion is a communion of 15 predominantly northern European Anglican and Evangelical Lutheran churches, with a couple of far-southwestern European church bodies of the same denomination. It was established in 1992 by a theological agreement entitled the Porvoo Common Statement which establishes full communion between and among these churches. The agreement was negotiated in the town of Järvenpää in Finland, but the communion's name comes from the nearby city of Porvoo, where a joint Eucharist was celebrated in Porvoo Cathedral after the formal signing in Järvenpää.

Porvoo is a city in Finland. It is located on the south coast of the country, on the Gulf of Finland. Porvoo lies in the eastern part of the Uusimaa region. The population of Porvoo is approximately 51,000, while the sub-region has a population of approximately 59,000. It is the 19th most populous municipality in Finland, and the 15th most populous urban area in the country.