Cognomen กัลยาณ (กัลยาณ 
, Kaljan 
, Kanlayana) , throughout the world, is a very rare last name. The family name กัลยาณ is characteristic of Thailand, where it is a very rare surname, Kazakhstan, and Germany, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Thailand, Germany, and India. More prevalently, กัลยาณ is the forename as well as the last name.