List of state leaders in 21 BC

22 BC state leaders - Events of 21 BC - 20 BC state leaders - State leaders by year

Asia

• China (Western Han Dynasty) -
  1. Emperor Cheng, Emperor of China (33 BC - 7 BC)
• Japan (legendary) - Suinin, Emperor of Japan (29 BC-AD 70)
• Korea -
  • Dongbuyeo - Geumwa, King of Dongbuyeo (48 BC– 7 BC)
  • Goguryeo - Dongmyeongseong, King of Goguryeo (37 BC – 19 BC)
  • Silla - Bak Hyeokgeose, King of Silla (57 BC– AD 4)

Europe

• Athens - Demeas Azenieus, Archon of Athens (21 BC–20 BC)
• Atrebates - Commius, King of the Atrebates (57 BC–20 BC)
• Bosporan Kingdom - Asander, King of Bosporus (47 BC–17 BC)
• Caucasian Iberia - Mirian II, King of Caucasian Iberia (32 BC–20 BC)
• Ireland - Lugaid Riab nDerg, High King of Ireland (33 BC–9 BC)
• Odrysian kingdom - Rhescuporis I, Odrysian King of Thrace (48 BC–13 BC)
• Roman Empire (Principate - Julio-Claudian dynasty)
  • Augustus, Roman Emperor (27 BC–14 AD)
  • Marcus Lollius, Consul (21 BC)
  • Quintus Aemilius Lepidus, Consul (21 BC)
  • Marcus Aemilius Lepidus, Pontifex Maximus (44 BC–13 BC)
  • Ægyptus Province - Gaius Petronius, Roman Prefect (24 BC–21 BC)
  • Syria Province - Marcus Vipsanius Agrippa, Roman Prefect (23 BC–13 BC)

Middle East

• Armenia - Artaxias II, King of Armenia (34 BC–20 BC)
• Cappadocia - Archelaus, King of Cappadocia (36 BC–17 AD)
• Commagene - Mithridates II, King of Commagene (38 BC–20 BC)
• Judea
  • Herod the Great, Roman client King of the Jews (40 BC–4 BC)
  • Simon ben Boethus, High Priest of Judea (23 BC–5 BC)
  • Hillel the Elder, Nasi of the Sanhedrin (31 BC–9 AD)
• Nabatea - Obodas III, King of Nabatea (30 BC–9 BC)
• Osroene - Ma'nu III, King of Osroene (23 BC–4 BC)
• Parthian Empire - Phraates IV, Emperor of Parthia (38 BC–2 BC)
• Pontus - Polemon I, King of Pontus (37 BC–8 BC)