Little Goguryeo (Korean: 소고구려; Chinese: 小高句麗; alternatively Lesser Goguryeo) is the name of a state thought to have existed on the Liaodong Peninsula, proposed by the Japanese scholar Kaizaburo Hino (ja:日野開三郎).

In 699, the Tang government sent former Goguryeo prince Go Deokmu, the third son of Goguryeo's last ruler, King Bojang, to Liaodong Peninsula, naming him "King of Chaoxian" and Governor of the Yodong Commandery of the Protectorate General to Pacify the East.

These and many other pressures allowed Go Deokmu to take full control of the Protectorate General to Pacify the East and allegedly to establish a kingdom.

[citation needed] The Lesser Goguryeo kingdom was established during that year with Go Deokmu as its first king.

It is known that Balhae was on good terms with Lesser Goguryeo with respect to the similar purposes that the two kingdoms possessed.