Ko Tŏngmu (; r. 699-?) was a prince of Goguryeo and the founder of Lesser Goguryeo. He was the third son of King Bojang.
Revival movement Ko Tŏngmu was appointed to the position of Governor of the Protectorate General to Pacify the East in 699, after his nephew Ko Powŏn refused the position. See also Lesser Goguryeo King Bojang Goguryeo Protectorate General to Pacify the East (Andong Dohubu)
Sources http://www.dragon5.com/news/news2004031602.htm (한국일보 2004-3-16) https://web.archive.org/web/20070928133409/http://www.baedalguk.com/bbs/zboard.php?id=free&page=1&sn1=&divpage=1&sn=off&ss=on&sc=on&select_arrange=headnum&desc=asc&no=266