The United Church of Christ in Japan (UCCJ; Nihon Kirisuto Kyà Âdan, or Kyà Âdan for short) is the largest Protestant denomination in Japan. It is a union of thirty-three diverse Protestant denominations forcibly merged by the Japanese wartime government on 24 June 1941. The UCCJ, which is a Japanese Independent Church, is a member of the World Council of Churches (WCC).
Currently, as of 2024, the church has around 152,074 members in 1626 active congregations and preaching stations, served by, as of March 31 2025, 1,796 active ministers and evangelists.
Upon promulgation of the Religious Organizations Law that forced the merger of all the Protestant churches in Japan to unite, a declaration of church unity was made at a mass meeting of Christians from all parts of Japan on 17 October 1940. The Kyà Âdan was established at a Founding General Assembly held at the Fujimicho Church (founded by Uemura Masahisa) on 24âÂÂ25 June 1941.
With the establishment of religious freedom by the Allied Occupation Forces in 1946, many groups left the Kyà Âdan to reestablish their prewar denominational identities. The most significant departures were the Anglican Church in Japan, the Japan Lutheran Church, Japan Baptist Convention, Japan Holiness Church, Japan Assemblies of God, Reformed Church in Japan (the Reformed Church in Japan did not exist as a denomination in the prewar era) plus numerous smaller evangelical churches.
The controversy had both theological and non-theological roots, some tending back into an earlier period. The union's wartime origin and the church's self-acknowledged complicity in the war were called into question. While the 1954 Confession of Faith, a doctrinal statement, clarified the postwar church's identity (there are debates and disputes about this), many cite the 1967 Confession of Responsibility During World War II as recovering the church's integrity, by openly dealing with the church's wartime role.
As of March 31 2025, seven ordained UCCJ missionaries serve in six overseas lands in a variety of ministries, a heritage begun when the first postwar missionary was sent to Brazil in 1957.
United Church of Christ in Japan permits openly gay and lesbian pastors to act as ministers.
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