Surname ขี้เหล็ก (Cassia 
, ขี้เหล็ก, Coiron 
) , in the world, is quite a common family name. The family name ขี้เหล็ก is habitual in Malta, where it is quite a common surname, Bolivia, where it is quite a rare surname, and Lebanon. Not in comparison with a country's population, it is the most numerous in Brazil, Italy, and France. More frequently, ขี้เหล็ก is the forename as well as the last name.