Family name Хосай (Hosai 
, Хосай 
) , all over the world, is a rare cognomen. The last name Хосай is habitual in Japan, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Israel. Measured by absolute frequency, it is the most numerous in Japan, India, and Saudi Arabia. Also, Хосай is the forename as well as the last name.