| Korean name | |
| Hangul: | 공성진 |
| Hanja: | 孔星鎭 |
| Rr: | Gong Seong-jin |
| Mr: | Kong Sŏngjin |
Gong Sung-jin (; born April 20, 1953) is a member of the Grand National Party (also known as the Hannara Party) in South Korea, representing the Gangnam District of Seoul.[1] He was born in Seoul on April 20, 1953.
After graduating from Kyunggi High School in Seoul, he attended Yonsei University with a major in political science. He continued his education at Claremont Graduate University, California in the United States and received his master's degree and PhD in 1986.
Gong Sung-Jin was elected from Gangnam District of Seoul at 2004, in the 17th General election. As a legislative career, he has worked in the Environment & Labor Committee, the National Defense Committee, the Intelligence Committee, and the Committee for Peaceful Reunification. He has held various posts in the Grand National Party as the chairman of the 1st Policy Coordination Committee, joint chairman of the National Development Strategy Research and so on. In the 17th presidential election, Gong served as chairman of the election campaign committee in Seoul. Later he was appointed as chairman of the GNP Seoul Branch in September 2007.
At the presidential election in December 2007, he decisively contributed to candidate Lee Myung-Bak's victory as the director-general of the Grand National Party presidential election campaign office in Seoul. He was reelected at the general election on April 9, 2008, and was elected as a Supreme Committee Member of the Grand National Party on July 3, 2008. He is now working as member of the National Policy Committee of the National Assembly and one of the most prominent politicians of the ruling Grand National Party.