The Oude Kerk van de Hervormde Gemeente Huizen is an old reformed church located on Kekstraat in the town of Huizen. The church is a non listed monument. The Dutch Reformed church formed as a branch of the old protestant church, as part of the Protestant Reformation in the 16th century. The Dutch Reformed Church bases its theology and teachings on those of John Calvin, one of the most prominent reformers of his time.