Cognomen ดังใจ (Dungjai 
, ดังใจ , Dangchai 
) , in the world, is a rare surname. The last name ดังใจ is habitual in Laos, where it is quite a rare surname, Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, ดังใจ is the forename as well as the last name.
สวาง, จงเจริญ, ภูระหงษ์, พานิชอิงอร, แสงสวาง, and ธรรมกิตติคุณ