Sinseol-dong () is a dong, legal neighbourhood, of Dongdaemun District, Seoul, South Korea.
Sinseol-dong is located at the westernmost part of Dongdaemun District. During the Joseon Dynasty, it was a newly established village within Dongbusungsinbang (å´Âä¿¡åÂÂ), and for that reason, it was called Sinseolgye (æ°è¨Âå¥Â, "newly established community"). During the Gabo Reform period, it came to be known as Sinseol-dong. In the past, the area was also referred to as Saemal ("new village") or Sin-ri (æ°éÂÂ).
In 1914, it became Sinseol-ri of Sungin-myeon, Goyang County, and in 1936, it was reincorporated into Gyeongseong-bu.
On June 11, 1943, with the implementation of the district system, it was incorporated into Dongdaemun District. On April 18, 1955, Bomun-dong 1âÂÂ7-ga were separated from it.
In 2009, Sinseol-dong merged with Yongdu-dong to form the integrated administrative dong of Yongshin-dong. Later, on July 1, 2025, it was separated again and reestablished as the administrative dong of Sinseol-dong.