Vietnamese Americans are Americans of Vietnamese ancestry. They comprise approximately half of all overseas Vietnamese and are the fourth-largest Asian American ethnic group following Chinese Americans, Indian Americans, and Filipino Americans. There are approximately 2.3 million people of Vietnamese descent residing in the U.S. as of 2023.

Chinese Americans are Americans of Chinese ancestry. Chinese Americans constitute a subgroup of East Asian Americans which also constitute a subgroup of Asian Americans. Many Chinese Americans have ancestors from mainland China, Hong Kong, Macau, Malaysia, Singapore, Taiwan, as well as other regions that are inhabited by large populations of the Chinese diaspora, especially Southeast Asia and some other countries such as Australia, Canada, France, South Africa, New Zealand, and the United Kingdom. Chinese Americans include Chinese from the China circle and around the world who became naturalized U.S. citizens as well as their natural-born descendants in the United States.