Cognomen Хигай (Higai 
, Khigay , Khigai ) , all around the world, is quite a rare family name. The cognomen Хигай is characteristic of Japan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Japan, Russia, and Kazakhstan. Much less frequently, Хигай is the forename as well as the last name.