Surname Loei (เลย 
, Loei 
) , in all the world, is a rare family name. The cognomen Loei is habitual in South-eastern Asia, particularly Indonesia, where it is a rare surname, Singapore, and Malaysia. In absolute terms, this name is the most popular in South-eastern Asia, particularly Indonesia, Malaysia, and Thailand. Likewise, Loei is the forename as well as the last name.