Surname ธีรจิตต์ (Theerachit 
, ธีรจิตต์ ) , in the world, is a very rare last name. The cognomen ธีรจิตต์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ธีรจิตต์ is the forename as well as the last name.