Yuseong District (Yuseong-gu) is a gu ("district") of Daejeon, South Korea, known for high tech industries, Daejeon Expo '93, Daedeok Science Town and the Yuseong Special Tourism District. Daejeon Islamic Center is also located in Kung-dong, Yuseong-gu. The Science Town is the core of the International Science and Business Belt.

Daejeon is South Korea's fifth-largest metropolis, with a population of 1.5 million as of 2019. Located in a central lowland valley alongside forested hills and the Geum River, the city is known for its technology and research institutions, and for celebrating its natural environment, with most mountains, hot springs, and rivers freely open for public use. Daejeon serves as a hub of transportation for major rail and road routes, and is approximately 50 minutes from the capital, Seoul, by KTX or SRT high speed rail.