Vietnamese Americans (Vietnamese: Người Mỹ gốc Việt, Vietnamese pronunciation: [ŋɯəj˨˩ mi˦ˀ˥ ɣŏk˧˦ viət̚˧˨ʔ~ziət̚˧˨ʔ]) are Americans of Vietnamese ancestry. They constitute a major part of all overseas Vietnamese. As of 2023, over 2.3 million people of Vietnamese descent live in the United States, making them the fourth largest Asian American ethnic group. The majority (60%) are immigrants, while 40% were born in the United States. The number includes people of other ethnicities such as Montagnards, Tais, Chams, or Hoa Chinese.
The Vietnamese American population grew significantly after 1975, when a large wave of South Vietnamese refugees arrived in the U.S. following the end of the Vietnam War. Today, over half of Vietnamese-Americans reside in California and Texas, particularly in metropolitan areas like Los Angeles, Houston, and San Jose.