- Yan (State of): Archontology
- Yan (State of): Notes
- Yan (State of): Rulers: 865-222 BC
- Yan (State of): Rulers: before 865 BC
- Yan (State of): Sources
- Yemen: Archontology
- Yemen: Glossary
- Yemen: Heads of State (Sanaʿa): 2015-2024
- Yemen: Heads of State: 1926-1962
- Yemen: Heads of State: 1962-2015
- Yemen: Polity Style: 1926-2024
- Yemen: President of the Revolutionary Command Council: 1962-1963
- Yemen: South Yemen: Archontology
- Yemen: South Yemen: Glossary
- Yemen: South Yemen: Heads of State: 1967-1990
- Yemen: South Yemen: Heads of State: 1994
- Yemen: South Yemen: Polity Style: 1967-1994
- YORK, duke of (Protector of England)
- Yuan: Archontology
- Yuan: Emperors: 1271-1368
- Yuan: Polity Style: 1271-1368
- Yuan: Sources
- Yugoslavia: Archontology
- Yugoslavia: Heads of State: 1953-1992
- Yugoslavia: Heads of State: 1992-2006
- Yugoslavia: Kings: 1918-1941
- Yugoslavia: Polity Style: 1918-2006
- Yugoslavia: President of the Presidency of the Anti-Fascist Council for the National Liberation: 1943-1945
- Yugoslavia: Presidents of the Presidium of the National Assembly: 1945-1953
- Yugoslavia: Regency: 1934-1941
- Yugoslavia: Regency: 1945
- Yugoslavia: Sources
Last update: 03 Dec 2024