Hmong Americans are Americans of Hmong ancestry. Many Hmong Americans immigrated to the United States as refugees in the late 1970s. Over half of the Hmong population from Laos left the country, or attempted to leave, in 1975, at the culmination of the Laotian Civil War.

The Hmong people are an indigenous group in Southeast Asia and East Asia. In China, the Hmong people are classified as a sub-group of the Miao people. The modern Hmong reside mainly in Southwest China and countries in Southeast Asia such as Vietnam, Laos, Thailand, and Myanmar. There is also a large diasporic community in the United States of more than 300,000. The Hmong diaspora has smaller communities in Australia and South America.