The Christian Reformed Church in North America is a Protestant Calvinist Christian denomination in the United States and Canada. Having roots in the Dutch Reformed Church of the Netherlands, the Christian Reformed Church was founded by Dutch immigrants in 1857 and is theologically Calvinist.

The Dutch Reformed Church was the largest Christian denomination in the Netherlands from the onset of the Protestant Reformation in the 16th century until 1930. It was the original denomination of the Dutch royal family and the foremost Protestant denomination until 2004. It was the larger of the two major Reformed denominations, after the Reformed Churches in the Netherlands was founded in 1892. It spread to the United States, South Africa, Indonesia, Sri Lanka, Brazil, and various other world regions through Dutch colonization. Allegiance to the Dutch Reformed Church was a common feature among Dutch immigrant communities around the world and became a crucial part of Afrikaner nationalism in South Africa.