Worldwide, Гико (Giko 
, Гико 
) is quite a common boy's first name. The first name Гико is characteristic of Japan, where it is quite a rare boy's name, Bulgaria, and Nigeria, where it is an extremely rare male name. Not in comparison with a country's population, the name is most common in Japan, Bulgaria, and India. Much less frequently, Гико is the last name as well as the forename.