The Porvoo Communion is an agreement between 12 European Protestant churches establishing full communion. The agreement was negotiated in 1994 in the town of Porvoo in Finland. The churches involved are the Anglican churches of the British Isles, the Lutheran state churches of the Nordic countries, and the Lutheran churches of the Baltic states. Later negotiations brought the Episcopal churches of the Iberian peninsula into the agreement.

Signatories of the Porvoo Communion:

• The Church of England
• The Church of Ireland
• The Scottish Episcopal Church
• The Church in Wales
• The Evangelical Lutheran Church of Finland
• The Church of Iceland
• The Church of Norway
• The Church of Sweden
• The Evangelical Lutheran Church of Estonia
• The Evangelical Lutheran Church of Lithuania
• The Lusitanian Church of Portugal
• The Spanish Reformed Episcopal Church

Other churches involved in the negotiations:

• The Church of Denmark
• The Evangelical Lutheran Church of Latvia