Gwangtonggwan (Korean: 광통관; Hanja: 廣通館), located in Seoul, is one of Korea's oldest bank buildings.

In recognition of the building's architectural and historic importance, Gwangtonggwan was registered as the one of city's protected monuments on March 5, 2001.

[citation needed] The building itself was designed by the architecture and construction office of the Takjibu, the Ministry of Finance of the Korean Empire.

[4] Mainly built from red bricks and granite, the Gwangtonggwan building has a symmetrical layout which roughly covers 774 square meters.

The main entrance is flanked by two Tuscan columns, and its entablature bears an inscription, "朝鮮商業銀行鐘路支店" (조선상업은행 종로지점; Joseon Sangup Bank Jongno Branch), inscribed from right to left following the old Korean tradition of writing.