List of state leaders in 178

This is a list of heads of state, government leaders, and other rulers in the year 178.

Africa

• Kush – Aritenyesbokhe, King of Kush (175–190)

Asia

• China – Ling, Emperor of China (168–189)
• Korea (Three Kingdoms Period)
  • Baekje – Chogo, King of Baekje (166–214)
  • Goguryeo – Sindae, King of Goguryeo (165–179)
  • Silla – Adalla, King of Silla (154–184)

Europe

• Armenia
  • Sohaemus, King of Armenia (163–186)
• Athens
  • Scribonius Capiton, Archon of Athens (177–178)
  • Flavius Stratolaus Phylasius, Archon of Athens (178–179)
• Bosporan Kingdom – Tiberius Julius Sauromates II, Roman client King of Bosporus (174–211)
• Caucasian Iberia – Pharsman III, King of Caucasian Iberia (145–185)
• Ireland – Art mac Cuinn, High King of Ireland (165–195)
• Marcomanni – Ballomar, King of the Marcomanni (166–178)
• Roman Empire (Principate – Nervan-Antonian dynasty)
  • Marcus Aurelius, Roman Emperor (161–180)
  • Commodus, Roman Emperor (177–192)
  • Servius Cornelius Scipio Salvidienus Orfitus, Consul (178)
  • Decimus Velius Rufus Iulianus, Consul (178)
  • Roman Britain (Britannia Province)
    • Quintus Antistius Adventus, Roman governor (175–178)
    • Caerellius Priscus, Roman governor (178–181)
  • Ægyptus Province – Titus Taius Sanctus, Roman Prefect (178–180)
  • Syria Palaestina Province – Judah haNasi, Nasi of the Sanhedrin (165–220)
  • Lower Moesia Province – Gaius Iunius Faustinus Placidus Postumianus, Roman governor (176–178)
• Ulaid – Tipraiti Tireach, King of the Ulaid (136–187)

Middle East

• Adiabene – Narsai, Parthian client King of Adiabene (170–200)
• Characene – Abinergaios II, King of Characene (165–180)
• Osroene – Abgar IX, King of Osroene (177–212)
• Parthian Empire – Vologases IV, Great King (Shah) of Parthia (147–191)