Cognomen Zephirum (Zero 
, Cero 
, Zerar 
) , in the world, is a common surname. The last name Zephirum is habitual in Bosnia and Herzegovina, where it is quite a common surname, Israel, where it is quite a rare surname, and Taiwan. Not in comparison with a country's population, it is the most numerous in Indonesia, Philippines, and China. Likewise, Zephirum is the forename as well as the last name.