Walloon church
A Walloon church describes any Calvinist church in the Netherlands and its former colonies whose members originally came from the Southern Netherlands and northern France and whose native language is French. Members of these churches belong to the Walloon Reformed Church, a denomination of the long-distinguished Dutch-speaking Dutch Reformed Church.
Many refugee Huguenots, in their exile, joined already existing Walloon churches — having in common the French language, Calvinism, and flight from persecution in a roughly common geography, being common factors to both Huguenot and Walloon refugee communities.