Daegu, formerly spelled Taegu and officially Daegu Metropolitan City (대구광역시), is a city in southeastern South Korea. It is the third-largest urban agglomeration in South Korea after Seoul and Busan; the fourth-largest metropolitan city in the nation with over 2.3 million residents; and the second-largest city after Busan in the Yeongnam region in southeastern South Korea. Daegu and the surrounding North Gyeongsang Province are often referred to as Daegu-Gyeongbuk, with a total population of over 5 million.