Cognomen ธีระวรรณ์ (ธีระวรรณ์ 
) , all around the world, is a very rare family name. The cognomen ธีระวรรณ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, ธีระวรรณ์ is the forename as well as the last name.