"Coup d'état"

"Coup d'état" is a french word that means "stroke of state". It is used to describe a sudden, extra-legal movement that ends with the deposition of the current government and its replacement by a new body, either civil or military. Usually there is a temporary organism that replaces the deposed government until new government is appointed or elected.

This is the list of countries where new governments were never again appointed or elected and the leader remains the same since taking office.

• Since 1969 - LIBYA - Leader and Guide of the Revolution: Muammar al-Gaddafi
• Since 1970 - OMAN - Sultan: Qaboos of Oman
• Since 1979 - EQUATORIAL GUINEA - President: Teodoro Mbasogo
• Since 1987 - BURKINA FASO - President:  Blaise Compaoré
• Since 1987 - TUNISIA - President: Zine Ben Ali
• Since 1989 - SUDAN - President: Omar al-Bashir
• Since 1992 - MYANMAR - Chairman of the State Peace and Development Council: Than Shwe
• Since 1994 - GAMBIA - President: Yahya Jammeh*
• Since 1995 - QATAR - Emir: Hamad bin Khalifa
• Since 2003 - CENTRAL AFRICAN REPUBLIC - President: François Bozizé*
• Since 2006 - FIJI - Acting Prime Minister: Frank Bainimarama
• Since 2008 - MAURITANIA - President: Mohamed Abdel Aziz*
• Since 2009 - MADAGASCAR - President of the High Transitional Authority: Andry Rajoelina
• Since 2010 - NIGER - Chairman of the Supreme Council for the Restoration of Democracy: Salou Djibo

* In these cases, leaders were confirmed by post "coup d'état" elections. However, I don't personally consider those legitimate, as so, I still include them in this list.

Source: Wikipedia