The World Union of Deists (WUD) is the largest and oldest organization in the world promoting the natural religion of deism.
The World Union of Deists was founded in Charlottesville, Virginia, on April 10, 1993, by Robert Johnson. The WUD is based in the United States with representatives in some thirty countries, produces podcasts, manages an online library, and publishes the journal Deism. The motto is "God Gave Us Reason, Not Religion". The WUD has a bi-monthly publication called Think!