Zacharie Myboto (born 1938) is a Gabonese politician and President of the National Union (UN), an opposition party. He was the Administrative Secretary of the Gabonese Democratic Party (PDG) from 1972 to 1990 and served in the government from 1978 to 2001. After resigning from the government, he became an opposition leader, founding the Gabonese Union for Democracy and Development (UGDD) in 2005 and placing third in the 2005 presidential election. He became President of the Group of the Forces of Change in the National Assembly in 2007.