Globally, Huachai (Huachai 
, หัสไชย , หัวใจ ) is a very rare dominantly masculine, but seldom girly first name. The first name Huachai is habitual in South-eastern Asia, particularly Thailand, where it is a very rare predominantly masculine, but scarcely female name. More prevalently, Huachai is the last name as well as the forename.