- Zambia: Archontology
- Zambia: Heads of State: 1964-2024
- Zambia: Polity Style: 1964-2024
- Zanzibar: Archontology
- Zanzibar: Heads of State: 1964
- Zanzibar: Polity Style: 1856-1964
- Zanzibar: Rulers: 1856-1964
- Zanzibar: Sources
- Zhao (State of): Archontology
- Zhao (State of): Rulers: 403-228 BC
- Zhao (State of): Sources
- Zhou: Archontology
- Zhou: Emperor: 690-705
- Zhou: Polity Style: 690-705
- Zimbabwe: Archontology
- Zimbabwe: Heads of State: 1980-2024
- Zimbabwe: Polity Style: 1980-2024
- Zimbabwe: Sources
- Zyl, Gideon Brand van
Last update: 21 Nov 2024