Central Post Office, Post office and historic site in Seoul, South Korea.

Ujeong Chongguk in Jongno-gu, Seoul, is the building of Korea's first modern post office, opened in 1884 on the site of the former Jeonuigam, the royal medical office. The surviving wooden structure faces south, five bays wide and three deep, with a marble floor, a hipped-and-gabled tile roof and a plaque reading 郵征總局 above the eaves. Round pillars stand at the south corners and north face, square pillars elsewhere.

The postal service was founded in 1884 during King Gojong's reign, first connecting Seoul and Incheon for mail delivery. The facility later became a major hub in Korea's growing communication network.

The building's name plaque, hung under the eaves facing the road, reads 郵征總局 in Chinese characters. Since 2012 the site has again handled mail, 128 years after the post office closed, and it offers a "slow mailbox": a postcard dropped in is delivered to the written address one year later.

The building is easily accessible in central Seoul near subway and bus stops, making it straightforward to reach by public transport. Inside, the service areas are clearly marked with signage that helps visitors find postal counters and banking services.

Five stamps in denominations of 5, 10, 25, 50 and 100 mun were printed for the building's inauguration in December 1884, but the Gapsin Coup broke out at the celebration banquet and they were never used. Since 2012 the building again handles mail through a "slow mailbox": a postcard dropped in is delivered to its address one year later.