title: Religion in Spain
context: Catholic Christianity is the largest religion in Spain, but practical secularization is strong.[2][3][4][5][6] Only 3% of Spaniards consider religion as one of their three most important values, even lower than the 5% European average.[7] The Spanish Constitution of 1978 abolished Catholicism as the official state religion, while recognizing the role it plays in Spanish society. As a result, there is no official religion and religious freedom is protected.[8]
question: What is the national religion of Spain?
answers: Catholic Christianity