Atheist states

China, officially the '''People's Republic of China (PRC'''), is a country in East Asia. It is the second-most populous country after India, with a population exceeding 1.4 billion, representing 17% of the world's population. China borders fourteen countries by land across an area of , making it the third-largest country by area. The country is divided into 33 province-level divisions: 22 provinces, 5 autonomous regions, 4 municipalities, and 2 semi-autonomous special administrative regions. Beijing is the capital, while Shanghai is the most populous city by urban area and largest financial ce

North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and borders China and Russia to the north at the Yalu (Amnok) and Tumen rivers, and South Korea to the south at the Korean Demilitarized Zone (DMZ). The country's western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. Pyongyang is the capital and largest city.

Marxist-Leninist government of Albania (1946–1992)

republic in Central/Eastern Europe between 1960 and 1990

former totalitarian state in Cambodia under the Khmer Rouge

The Derg or Dergue (, ), officially the Provisional Military Administrative Council (PMAC), and also often simply known as Socialist Ethiopia, was the military junta that ruled Ethiopia, including present-day Eritrea, from 1974 to 1987, when they formally "civilianized" the administration, though remaining in power until 1991.

self-declared socialist state (1975–1992)

1975–2002 country in southeast Africa