List of state leaders in 634
633 state leaders - Events of 634 - 635 state leaders - State leaders by year
Africa
America
- Mayas - Pacal II, Ruler of Palenque (615-683)
Asia
- China (Tang Dynasty) - Taizong, Emperor of China (627-649)
- Japan (Asuka Period) - Jomei, Emperor of Japan (629-641)
- Korea (Three Kingdoms) -
- Baekje - Mu, King of Baekje (600-641)
- Goguryeo - Yeongryu, King of Goguryeo (618-642)
- Silla - Seondeok, Queen of Silla (632-647)
Europe
- Wales List of rulers of Wales:
- Gwynedd Cadwallon ap Cadfan King of Gwynedd (625-634)