Around the world, كالدر (Calder 
, كالدر) is a rare predominantly masculine, but very seldom female first name. The given name كالدر is characteristic of the United States, where it is a very rare male name, the United Kingdom, where it is a very rare mostly masculine, but uncommonly feminine name, and China, where it is an extremely rare female name. Much more frequently, كالدر is the last name as well as the forename.