Religion

Since the state's founding in the 11th century, forms of Christianity have dominated religion in Hungary. In modern Hungary, there is no official religion. While the constitution "recognizes Christianity's nation-building role," religious freedom is declared a fundamental right in Hungary. This is consistent with the historical tradition that gave rise to the state. Hungary's historical foundation was built on Christianity, which was declared the national religion by King St. Stephen. Over the last millennium, the percentage of Christians has dropped from nearly all of the population to around three-fifths today. With the emergence of modern thinking, many people, particularly the younger generation, have begun to identify as atheists, agnostics, or outright unaffiliated.

Many Christians have switched from Roman Catholicism to the Reformed Church of Hungary. The Protestant Reformation began in the 16th century, when Lutheranism and then Calvinism swept across the population. The Reformed Church, along with numerous other minor Protestant Christian denominations, accounts for around 13.8% of Hungary's total population.