The Congregational Christian Church of Niue (CCCN) is a Christian Congregationalist church in Niue and New Zealand. It is the largest religious denomination in Niue, claiming approximately 75% of Niue's population as members.
In Niue, the church has 1300 members in 13 congregations with 12 pastors. It also has a presence among the roughly 4500 Niueans living in New Zealand.
The CCCN was founded in Niue by missionaries from the London Missionary Society (L.M.S.). It was known as the L.M.S. Church in Niue until 1970, when it became autonomous and adopted the name Eklesia Niue, or the Church of Niue. It has since changed its name to its current form.
The CCCN is a member of the World Council of Churches, the Pacific Conference of Churches, the Council for World Mission, the World Alliance of Reformed Churches, and the Niue National Council of Churches.