Laos is famous for being a devout Buddhism country. Most of Lao lowland people (about 50 percents of population) are follower of Theravada Buddhism. Most of these ethnic minorities are practitioners of animism, with beliefs that vary greatly among groups. Catholics and Protestants constitute approximately 2 percent of the population. Other minority religious groups include those practicing the Islam, Mahayana Buddhism and Confucianism. A very small number of citizens follow no religion.
Despite the importance of Buddhism to Lao Loum and some Lao Theung groups, animist beliefs are widespread among all segments of the Lao population. The belief in phi (spirits) forms the relationships of many Lao with nature and community and provides one explanation for illness and disease.More info