Cognomen Kidong (Kidong 
) , around the globe, is a rare surname. The family name Kidong is characteristic of South Korea, where it is a rare surname, Thailand, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. In absolute terms, it is the most numerous in South Korea, Thailand, and China. More prevalently, Kidong is the forename as well as the last name.