Family name Tanawan (ธนวรรณ 
, Tanawan 
, ธนาวรรณ ) , all around the world, is quite a rare surname. The surname Tanawan is habitual in South-eastern Asia, particularly Philippines, where it is quite a rare surname, Thailand, where it is a rare surname, and Malaysia, where it is a very rare surname. In absolute terms, it is the most numerous in Philippines, Thailand, and the United States. More prevalently, Tanawan is the forename as well as the last name.