Imperial rulers
- Undated emperors
- Legendary emperors
- Emperors of the early 5th century
- Emperors of the middle of the 5th century
- Emperors of the late 5th century
- Emperors of the early 6th century
- Clearly dated emperors and empresses 539-present
Regents of the Kamakura shogunate 1203-1333
Transitional shoguns 1568-1598
Prime Ministers of Japan 1885-present
See also: shogun -- bakufu -- History of Japan - Lists of incumbents