List of state leaders in 203

202 state leaders – Events of 203 – 204 state leaders – State leaders by year

Africa

• Kush - Teritedakhatey, King of Kush (c.200-215)

Asia

• Armenia - Chosroes I, King of Armenia (197-238)
• Chera - Yanaikat-sey Mantaran Cheral, King of Chera (201-241)
• China -
  • Han Xian Di, Emperor of Han China (189-220)
  • Cao Cao (d.220), de facto ruler
  • Major warlords - Liu Biao (d.208), Sun Quan (d.252)
• Korea (Three Kingdoms Period)
  • Baekje - Chogo, King of Baekje (166–214)
  • Gaya Confederacy - Geodeung, King of Gaya (199-259)
  • Goguryeo - Sansang, King of Goguryeo (197–227)
  • Silla - Naehae, King of Silla (196–230)
• Iberia - Rev I the Just, King of Iberia (189-216)
• Kushan Empire - Vasudeva I, King of Kushan (c.191-225)
• Osroene - Agbgar IX the Great, King of Osroene (177-212)
• Parthia - Vologases V, King of Parthia (c.191-208)

Europe

• Roman Empire - Septimius Severus, Roman Emperor (193-211)