Worldwide, Вичай (Vichai 
, Vichay 
, Вичай 
) is a rare principally masculine, but very infrequently female given name. The given name Вичай is habitual in Thailand, where it is a rare masculine name, the United States, where it is a very rare male name, and India, where it is an extremely rare epicene name. Much less frequently, Вичай is the last name as well as the forename.