All around the world, Omchai (ออมใจ 
, Omchai 
, อ้อมใจ) is quite a rare mostly feminine, but seldom male first name. The forename Omchai is characteristic of Thailand, where it is quite a rare largely female, but seldom male name, and China, where it is a very rare boy's name. Very seldom, Omchai is the last name as well as the forename.