List of state leaders in 64
AD 63 state leaders – Events of AD 64 – AD 65 state leaders – State leaders by year
Africa
Asia
Europe
- Athens – Gaius Carreinas Secundus, Archon of Athens (64–65)
- Bosporan Kingdom – Interregnum – Roman rule (63–68)
- Brigantes – Cartimandua, Queen of the Brigantes (43–69)
- Caucasian Iberia – Qartam, King of Caucasian Iberia (58–72)
- Ireland – Elim mac Conrach, High King of Ireland (56–76)
- Regnenses – Tiberius Claudius Cogidubnus, King of the Britons (50–?) and King of the Regnenses (43–?)
- Roman Empire (Principate – Julio-Claudian dynasty)
- Nero, Roman Emperor (54–68)
- Gaius Laecanius Bassus, Consul (64)
- Marcus Licinius Crassus Frugi, Consul (64)
- Mucianus, Consul suffectus (64)
- Quintus Fabius Barbarus Antonius Macer, Consul suffectus (64)
- Faenius Rufus, Praetorian prefect (62–65)
- Tigellinus, Praetorian prefect (62–68)
- Roman Britain (Britannia Province) – Marcus Trebellius Maximus, Roman governor (63–69)
- Ægyptus Province – Gaius Caecina Tuscus, Roman Prefect (63–65)
- Judea (Iudaea Province)
- Syria Province – Cestius Gallus, Roman governor (63–67)
- Ulaid – Elim mac Conrach, King of the Ulaid (56–76)
Middle East
- Adiabene – Monobaz II, King of Adiabene (55–mid 70s)
- Armenia – Tiridates I, King of Armenia (Roman protectorate) (53, 54–58, 62–72)
- Armenia Minor – Aristobulus of Chalcis, King of Armenia Minor (55–72)
- Characene
- Commagene – Antiochus IV, King of Commagene (38, 41–72)
- Nabatea – Malichus II, King of Nabatea (40–70)
- Osroene – Ma'nu VI, King of Osroene (57–71)
- Parthian Empire
- Pontus – Polemon II, King of Pontus (38–64)