Family name สีมา (Sima 
, สีมา 
, Sīmā) , in the entire world, is a common last name. The cognomen สีมา is habitual in Romania, where it is quite a common surname, Gabon, and Guam (explore the name in all countries). In absolute terms, the name is most common in India, Romania, and Bangladesh. Much more prevalently, สีมา is the forename as well as the last name.