高台教
A minority of Vietnamese are also followers of the Cao Đài faith which was introduced in 1927. The Cao Đài faith attracted both Vietnamese and Cambodian adherents within the first few years of its founding, but a royal decree which outlawed the religion and efforts by Cambodian nationalists to prosecute Khmer adherents led to Cao Dai being observed solely by Vietnamese from the 1930s onwards. A Cao Đài temple was built in Mao Tse Tung Boulevard in 1937, and in the 1960s there were about 70,000 adherents in Cambodia. Cao Đài was outlawed during the Khmer Republic and Khmer Rouge regimes, but regained official recognition in 1985 and has about 2,000 adherents in 2000.