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Orthodox Church of Finland

Archbishop of Helsinki and All Finland · Kuopio · est. 1923

An autonomous church under Constantinople; the only Orthodox body that keeps the Gregorian Paschalion.

The Orthodox Church of Finland is an autonomous church under the Ecumenical Patriarchate, with roots in the medieval mission from Novgorod and Valaam. It follows the New (Revised Julian) Calendar for the fixed feasts and is unique among Orthodox churches in computing Pascha by the Gregorian paschalion rather than the Julian — a practice it reaffirmed in the 21st century. Its primate is the Archbishop of Helsinki and All Finland.