This article is about the Japanese towers or turrets called yagura (). For the yagura (やぐら) tombs used in Kamakura during the Kamakura period, see Yagura (tombs). For the castle in shogi, see Shogi castle § The Yagura castle.
Funai Castle Hitojichi-yagura and base of the main keep tower in the honmaru

Yagura (櫓, 矢倉[1]) is the Japanese word for: "tower", "turret", "keep", "scaffold".[2] The word is most often seen in reference to structures within Japanese castle compounds, but can be used in a variety of other situations as well. The bandstand tower erected for Bon Festival is often called a yagura, as are similar structures used in other festivals.[3] Yagura-daiko, that is, taiko drumming from atop a yagura is a traditional part of professional sumo competitions.[4]

There were signs that the first written form of kanji was (櫓) during ancient periods, just simply being a character representing a tower before being changed to (矢倉)—in which the former replaced the latter once again. The term originally derives from the use of fortress towers as high/tall or arrow (矢, ya) storehouses (倉, kura), and was thus originally written as 矢倉. The term was used for a collection of towers. Today, modern towers such as skyscrapers or communications towers are almost exclusively referred to or named using the English-derived word tawā (タワー), and not yagura.

Castle towers

Castle towers varied widely in shape, size, and purpose. Many served, of course, as watchtowers, guardtowers, and for similar military purposes. Arrows were often stored there, along with, presumably, other equipment. However, as castles also served as the luxurious home of Japan's feudal lords (the daimyō), it was not uncommon for a castle to also have an astronomy tower, or a tower which provided a good vantage point for enjoying the natural beauty of the scenery.

Japan has rarely feared invasion or maintained border forts. However, it is not unlikely that various types of guardtowers or watchtowers would have been kept, outside of larger castle compounds, at various times and places throughout Japan's history.


  1. Kojien, Iwanami Shoten, Tokyo 1980
  2. Kenkyusha's New Japanese-English Dictionary, Kenkyusha Limited, Tokyo 1991, ISBN 4-7674-2015-6
  3. Shin-meikai-koku-jiten, Sanseido Co., Ltd, Tokyo 1974
  4. Official Grand Sumo homepage


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