Tangni Kingdom () or Gori Kingdom () was a proto-Korean kingdom where King Dongmyeong, who was the founder of Buyeo, was born.
It is said that Gori Kingdom was located in the north of Buyeo.
Naità  Torajirà  pointed out that the Gori Kingdom (where King Dongmyeong, a founder of Buyeo was born) was a country of Daur people who lived by Songhua River.
Gori Kingdom is described in different way by different historical documents. The oldest record of King Dongmyeong, a founder of Buyeo, is in Lunheng of Wang Chong in the Eastern Han dynasty.
In Lunheng, Vol 2, Chapter Jiyan (), there's a description of Tangni Kingdom.
In Records of the Three Kingdoms, Vol30, Chapter 30 of Book of Wei, Biographics of Wuhuan, Xianbei, and Dongyi, Weilue, there's a description of Gori Kingdom.
In Records of the Three Kingdoms, Vol30, Chapter 30 of Book of Wei, Biographics of Wuhuan, Xianbei, and Dongyi, Weilue, there's following descriptions.