Across the world, ถิรรัตน์ (Tirarat 
, ถิรรัตน์ , Tirunrat ) is a very rare primarily girly, but very seldom male first name. The first name ถิรรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare predominantly girly, but scarcely male name. Very seldom, ถิรรัตน์ is the last name as well as the forename.
จูเลิศตระกูล, and มณีกุล