Laos (Wikipedia) Laos, officially the Lao People’s Democratic Republic (LPDR), is the only landlocked country and one of the two Marxist-Leninist states in Southeast Asia. At the heart of the Indochinese Peninsula, Laos is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and southwest. Its capital and largest city is Vientiane.