List of state leaders in 123

This is a list of heads of state, government leaders, and other rulers in the year 123.

Africa

• Kush – Tamelerdeamani, King of Kush (114–134)

Asia

• China – An, Emperor of China (106–125)
• Korea (Three Kingdoms Period)
  • Baekje – Giru, King of Baekje (77–128)
  • Goguryeo – Taejo, King of Goguryeo (53–146)
  • Silla – Jima, King of Silla (112–134)

Europe

• Bosporan Kingdom
  • Tiberius Julius Sauromates I, Roman client King of Bosporus (90–123)
  • Tiberius Julius Cotys II, Roman client King of Bosporus (123–132)
• Caucasian Iberia – Pharasmanes II, King of Caucasian Iberia (116–142)
• Ireland
  • Conn of the Hundred Battles, High King of Ireland (122–157)
  • Mug Nuadat, King of southern Ireland (123–?)
• Roman Empire (Principate – Nervan-Antonian dynasty)
  • Hadrian, Roman Emperor (117–138)
  • Quintus Articuleius Paetinus, Consul (123)
  • Titus Salvius Rufinus Minicius Opimianus, Consul (123)
  • Gnaeus Sentius Aburnianus, Consul suffectus (123)
  • Lucius Vitrasius Flamininus, Consul suffectus (123)
  • Marcius Turbo, Praetorian prefect (119–?)
  • Roman Britain (Britannia Province) – Aulus Platorius Nepos, Roman governor (122–125)
  • Ægyptus Province – Titus Haterius Nepos, Roman Prefect (120–124)
  • Judea (Iudaea Province) – Interregnum in Nasi of the Sanhedrin (120–142)

Middle East

• Osroene
  • Parthamaspates of Parthia, King of Osroene (118–123)
  • Ma'nu VII, King of Osroene (123–139)
• Parthian Empire
  • Vologases III, Great King (Shah) of Parthia (105–147) also known as Vologases I (Vagharsh I) of Arsacid Armenia (119-144)
  • Osroes I, Great King (Shah) of Parthia (109–129)