All Japan Iaidō Federation

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Zen Nippon Iaidō Renmei (ZNIR)
TypeMartial Arts organization
Official language
Fukui Masato
Key people
Ikeda Hayato, Kōno Hyakuren, Ikeda Seikō

The Zen Nippon Iaidō Renmei (ZNIR) or All Japan Iaidō Federation (全日本居合道連盟 abbreviated 全日居 "Zen Nichi I" or 全居連 "Zen I Ren") is a national non-governmental organization in Japan, founded in 1948[1] by Ikeda Hayato (later Prime Minister of Japan). The ZNIR was officially formed and registered with the government in May 5, 1954 by Iaido practitioners from multiple styles.[2] The ZNIR is Japan's first and oldest Iaidō-only specialist organization. It holds yearly National Kyoto Iaidō Event in Kyoto, Japan typically from May 3rd to May 5th and Hamamatsu National Iaidō Competition Tournament in Hamamatsu city in October. ZNIR also holds many other regional Iaidō tournaments regularly throughout the years.


The All Japan Iaido Federation was founded in 1948, and recognized officially as an organization with the Japanese Government in 1954.

In 1956, the ZNIR established 全日本居合道連盟刀法 (Zen Nippon Iaidō Renmei Tōhō) in an effort to unify practitioners and create a common set to fairly grade each practitioner from varying styles.


ZNIR has ten Chiku Renmei (district federations):[3]


The All Japan Iaido Federation contains multiple traditional styles, in no particular order:[3]

Shared Techniques, or Tōhō (刀法)[edit]

Due to the varying styles in the All Japan Iaido Federation, a set of common techniques, or waza, were created in 1956 to examine a practitioner's skill in a fair manner, each borrowed from five major styles in the Federation.

This set is known collectively as "Tōhō" (刀法):[2][4]

  1. Mae-giri from Musō Jikiden Eishin-ryū, founded during the late Muromachi period - ca. 1590
  2. Zengo-giri from Mugai-ryū, founded in 1695
  3. Kiri-age from Shindō Munen-ryū, founded in the early 1700s
  4. Shihō-giri from Suiō-ryū, founded during the early Edo period - ca. 1615
  5. Kissaki-gaeshi from Hōki-ryū, founded during the late Muromachi period - ca.1590


Other than the Kyoto Iaidō Taikai(tournament) in May, the ZNIR also holds a Zenkoku Kyōgi Taikai in the fall of every year. Each Chiku Renmei(district) also hold their own local Iaidō tournament and exam.[3]

Ranking System[edit]

The All Japan Iaidō Federation grants ranks similarly to other Japanese martial arts organizations, with Dan and Shōgō (titles) both granted to practitioners once they reach certain levels of competency and skill.

After Mudansha (no rank), there are:

  • Sho Dan (1 rank)
  • Ni Dan (2 rank)
  • San Dan (3 rank)
  • Yon Dan or Yo Dan (4 rank)
  • Go Dan (5 rank)
  • Roku Dan (6 rank)
  • Renshi (錬士 or "Polished/Forged Instructor")
  • Nana Dan or Shichi Dan (7 rank)
  • Kyoshi (教士 or "Advanced Senior Teacher")
  • Hachi Dan (8 rank)
  • Jun Hanshi (準範士 or "Associate Hanshi")
  • Hanshi (範士 or "Senior expert")
  • Kyu Dan or Ku Dan (9 rank)
  • Jū Dan (10 rank)

Like other martial arts organizations, Shōgō (title) are granted, however they are considered to be levels or rankings similarly to Dan, and are typically granted between the various Dan levels above Roku Dan.

For example, after Roku Dan and a certain amount of time has passed, the practitioner will test for Renshi at their next grading.


  1. ^ "How did Iaido Originate?". Saskatoon Kendo Club. Retrieved 20 December 2017.
  2. ^ a b Bains, Dr. Raghpat S. "Zen Nippon Iaido Renmei - All Japan Iaido Federation". YAMAUCHI-HA Muso Jikiden Eishen Ryu - IaiJutsu. Retrieved 20 December 2017.
  3. ^ a b c "一般社団法人 居合道情報センター 全日本居合道連盟について". All Japan Iaido Federation (ZNIR).
  4. ^ "WORLD IAIDO YOU ARE MOST WELCOME..!!". Martial Arts International Federation. Retrieved 20 December 2017.