Family name Kuantai (Куантай 
, Kuantai 
) , all around the world, is a very rare cognomen. The surname Kuantai is characteristic of Kazakhstan, where it is a very rare surname, Kyrgyzstan, and Thailand. In absolute terms, this name is the most popular in Thailand, Kazakhstan, and China. Much more frequently, Kuantai is the forename as well as the last name.