The Lutheran World Federation (LWF) is a global communion of Christian churches in the Lutheran tradition. Founded in 1947 in Lund, Sweden, the LWF now has 149 member churches in 99 countries around the world, representing more than 77.8 million Christians.
The LWF acts on behalf of its member churches in areas of ecumenical and interfaith relations, theology, humanitarian assistance, human rights, communication and the various aspects of mission and development. The LWF is a member of Act Alliance.