East Asia is a subregion of Asia that can be defined in either geographical or cultural terms. Geographically, it covers about 6,640,000 km², or 15% of the Asian continent. Culturally, it embraces those societies that are part of the Chinese cultural sphere, displaying heavy historical influence from the Classical Chinese language (including the traditional script), Confucianism and Neo-Confucianism, Mahayana Buddhism, and Daoism. This combination of language, political philosophy, and religion overlaps with the geographical designation of East Asia.

The following countries are located in geographic East Asia:

The People's Republic of China (including Hong Kong and Macau)

Republic of China (Taiwan) 

 Democratic People's Republic of Korea (North Korea)

 Republic of Korea (South Korea)

 Japan

 Mongolia