Each modern Japanese prefecture has a unique flag, most often a bicolour geometric highly stylised design, often incorporating the characters of the Japanese writing system and resembling minimalistic company logos.[1] The heraldic badges worn by warriors in medieval Japan (mon) were forerunners of the modern emblems used in the prefectural flags.[2]
A distinct feature of these flags is that they use a palette of colours not usually found in flags, including orange, purple, aquamarine and brown.
Some prefectures also have alternative official flags called . They may be used on less formal occasions. Famous symbol flags include the one used in Tokyo.
| Flag | Prefecture | Geocode | Date | Description | |
|---|---|---|---|---|---|
| JP-23 | 1950-08-15 | Stylised hiragana of あいち (Aichi). The emblem also expresses sunrise and wave to indicate Aichi's location facing the Pacific Ocean. | |||
| JP-05 | |||||
| JP-02 | |||||
| JP-12 | |||||
| JP-38 | |||||
| JP-18 | |||||
| JP-40 | |||||
| JP-07 | |||||
| JP-21 | |||||
| JP-10 | |||||
| JP-34 | |||||
| JP-01 | |||||
| JP-28 | |||||
| JP-08 | |||||
| JP-17 | |||||
| JP-03 | |||||
| JP-37 | |||||
| JP-46 | |||||
| JP-14 | |||||
| N/A | |||||
| JP-39 | |||||
| JP-43 | |||||
| JP-26 | |||||
| JP-24 | |||||
| JP-04 | |||||
| JP-45 | |||||
| JP-20 | |||||
| JP-42 | |||||
| JP-29 | |||||
| JP-15 | |||||
| JP-44 | |||||
| JP-33 | |||||
| JP-47 | |||||
| JP-27 | |||||
| JP-41 | |||||
| JP-11 | |||||
| JP-25 | |||||
| JP-32 | |||||
| JP-22 | |||||
| JP-09 | |||||
| JP-36 | |||||
| JP-13 | |||||
| JP-31 | |||||
| JP-16 | |||||
| JP-30 | |||||
| JP-06 | |||||
| JP-35 | |||||
| JP-19 |