Surname ใจรัตน์ (ใจรัตน์ 
, Jairat 
) , globally, is a rare last name. The family name ใจรัตน์ is habitual in Thailand, where it is a rare surname, Mexico, where it is an extremely rare surname, and Nigeria. Measured by absolute frequency, it is commonest in Thailand, India, and Nigeria. Likewise, ใจรัตน์ is the forename as well as the last name.