<P> Within the Philippines, the Visayan (mainly Cebuanos and Hiligaynons), Tagalog, Ilocano, Bicolano and Central Luzon (mainly Kapampangan and Pangasinan) groups are significant . </P> <P> Countries in Southeast Asia practice many different religions . Islam is the most practised faith, numbering approximately 240 million adherents, or about 40% of the entire population, concentrated in Indonesia, Brunei, Malaysia, Southern Thailand and in the Southern Philippines . Indonesia is the most populous Muslim - majority country around the world . </P> <P> Buddhism is predominant in Vietnam, Thailand, Laos, Cambodia, Burma and Singapore . Ancestor worship and Confucianism are also widely practised in Vietnam and Singapore . </P> <P> Christianity is predominant in the Philippines, eastern Indonesia, East Malaysia and East Timor . The Philippines has the largest Roman Catholic population in Asia . East Timor is also predominantly Roman Catholic due to a history of Portuguese rule . </P>

What are the country in south east asia