Coordinates: 35°52′N 128°36′E / 35.867°N 128.6°E / 35.867; 128.6

Daegu (Korean: [tɛɡu]), (대구, 大邱, literally 'large hill') formerly spelled Taegu, and officially known as the Daegu Metropolitan City, is a city in South Korea, the fourth largest after Seoul, Busan, and Incheon, and the third largest metropolitan area in the country with over 2.5 million residents. The city is the capital and principal city of the surrounding Gyeongsangbuk-do province, although it is not legally part of the province. The two areas combined are often referred to as Daegu-Gyeongbuk, with a total population of over 5 million.

Daegu is located in south-eastern Korea about 80 km from the seacoast, near the Geumho River and its mainstream, Nakdong River in Gyeongsang-do. The Daegu basin, where the city lies, is the central plain of the Yeongnam region, making the city the natural center of the region's politics, economy, and culture.

In ancient times, Daegu was part of the Silla Kingdom which was the first successful attempt to unify the Korean Peninsula. During the Joseon Dynasty period, the city was the capital of Gyeongsang-do which was one of eight provinces of the country. Daegu was an important motor during South Korea's rapid economic growth period (1960s–1980s) and is currently focused on becoming a leading center in Korea for the fashion and high-tech industries. Due to its status as a cultural center, popular nicknames for Daegu include "Apple City", "Beauty City", "Textile City", and "Fashion City".

The Honourable Usain St. Leo Bolt, OJ, C.D. ( /ˈjuːseɪn/; born 21 August 1986), is a Jamaican sprinter and a five-time World and three-time Olympic gold medalist. He is the world record and Olympic record holder in the 100 metres, the 200 metres and (along with his teammates) the 4×100 metres relay. He is the reigning Olympic champion in these three events, and is one of only seven athletes (along with Valerie Adams, Veronica Campbell-Brown, Jacques Freitag, Yelena Isinbayeva, Jana Pittman, Dani Samuels) to win world championships at the youth, junior, and senior level of an athletic event.

Bolt won a 200 m gold medal at the 2002 World Junior Championships, making him the competition's youngest-ever gold medalist at the time (since surpassed by Jacko Gill). In 2004, at the CARIFTA Games, he became the first junior sprinter to run the 200 m in less than 20 seconds with a time of 19.93 s, breaking the previous world junior record held by Roy Martin by two-tenths of a second. He turned professional in 2004, and although he competed at the 2004 Summer Olympics, he missed most of the next two seasons due to injuries. In 2007, he broke Don Quarrie's 200 m Jamaican record with a run of 19.75 s.