Surname ธีระกุล (ธีระกุล 
, Theerakul , Thirakul 
) , in the entire world, is quite a rare last name. The family name ธีระกุล is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname, Thailand, and Singapore, where it is a rare surname. In absolute terms, it is the most numerous in Thailand, Laos, and the United States. Very seldom, ธีระกุล is the forename as well as the last name.