Overview:
This school is a school that specializes in Koppojutsu or bone breaking techniques. This ryû contains many special kicks, punches and throws.This ryû is reserved for highly skilled members of the Bujinkan. The techniques of this school tend to be very direct and hard.

This school is thought to be similar to Koto Ryû with its use of Koppojutsu. This style is known for its low stances, with much of the advanced footwork within the Bujinkan system coming from this ryû. This ryû was originally founded by Uryu Hangan Gikanbo in the mid 1500s.

Soke of Gikan Ryû:

1. Uryu Hangan Gikanbo Yeiroku Era (1558-1570)
2. Uryu Yoshimitsu Tensho Era (1573-1592)
3. Uryu Yoshimori Kan-ei Era (1624-1644)
4. Uryu Yoshichika Kambun Era (1661-1673)
5. Uryu Yoshitaka Genroku Era (1688-1704)
6. Uryu Yoshihide Horeki Era (1751-1764)
7. Uryu Yoshimori Kansei Era (1789-1801)
8. Uryu Yoshiaki Tenpo Era (1830-1844)
9. Uryu Yoshiyasu Bunkyu Era (1861-1864)
10. Uryu Gikan Keiko Era (1865-1868)
11. Ishitani Takeoi Masatsugu (approx. death 1905)
12. Ishitani Matsutaro Takekage (approx. death 1911)
13. Takamatsu Toshitsugu Uoh b. 1887 - d. 1972
14. Akimoto Fumio (approx. death 1962)
15. Hatsumi Masaaki b. 1931 -