List of Heads of State in year 30 - 31 years - List of Heads of State in year 32 - List of Heads of State by year
Africa
- Mauritania - Ptolemy ( 23 - 40 )
- The Meroite Kingdom - Pisacar ( 28 - 37 )
Asia
- Adiabena - Elena ( 30 - 58 )
- Great Armenia - Artashes III ( 18 - 34 )
- Iberia - Mithridates I ( 1 - 35 )
- China (Eastern Han Dynasty) - Guang Wu-di (Liu Xiu), Emperor ( 25 - 57 )
- Koguryo - Temusin , Thewan ( 18 - 44 )
- Commagena - interregnum (Roman rule; 17 - 38 )
- Kushan Kingdom - Kujula Kadfiz ( 30 - 80 )
- The Nabataean Kingdom - Aretha IV Philopator ( 9 BC - 40 AD )
- Osroena - Abgar V ( 13 - 50 )
- Baekje - Taru ( 29 - 77 )
- Parthia - Artaban III ( 11 - 35 )
- Pontus - Pythodorida ( 8 BC - 38 AD )
- Silla - Yuri , Isagym ( 24 - 57 )
- Japan - Suining , Tenno (emperor) ( 29 BC - 70 AD )
Europe
- The Kingdom of Bosporus - Reskuporid I Aspurgh ( 14 BC - 37 AD )
- Ireland - Fiat Finn ( 14 - 36 )
- Katuvellauny - Kunobelin ( 9 - 43 )
- Kingdom of Odris - Remethalk II ( 18 - 38 )
- Roman Empire -
- Tiberius , Roman Emperor ( 14 - 37 )
- Tiberius Consul ( 31 )
- Lucius Eliy Seeian , Consul ( 31 )