The Grand Unified Democratic New Party (Korean: 대통합민주신당; Hanja: 大統合民主新黨; RR: Daetonghapminjusindang; MR: Taet'onghapminjusindang; GUDNP) was a political party of South Korea. It was formed out of the Uri Party and its resulting splinter groups. Chung Dong-young was the UNDP candidate in the 2007 South Korean presidential election; he lost to Lee Myung-bak. On February 17, 2008, the party merged with the Democratic Party to form the United Democratic Party.