The Lutheran Church in Great Britain (LCiGB) is a small Protestant Christian church in the United Kingdom. The LCiGB is a member church of the Lutheran World Federation and of The Lutheran Council of Great Britain, the umbrella organisation for several Lutheran churches in Great Britain, many of which are chaplaincies or congregations that are closely related to Lutheran churches in other countries. The LCiGB is also a member of the Porvoo Communion of Anglican and Lutheran churches in Europe. It is, in common with many Lutheran churches, led by a bishop and a council of lay members and clergy elected at its annual synod. Tor Berger Jørgensen, former bishop of the Diocese of Sør-Hålogaland in the Church of Norway, was received as the fourth bishop of the LCiGB on 6 October 2019.

The Lutheran World Federation is a global communion of national and regional Lutheran denominations headquartered in the Ecumenical Centre in Geneva, Switzerland. The federation was founded in the Swedish city of Lund in the aftermath of the Second World War in 1947 to coordinate the activities of the many differing Lutheran churches. Since 1984, the member churches are in pulpit and altar fellowship, with common doctrine as the basis of membership and mission activity.