Kashima Shinden Jikishinkage-ryū , often referred to simply as Jikishinkage-ryū or Kashima Shinden, is a traditional school (koryū) of the Japanese martial art of swordsmanship (kenjutsu). The school was founded in the mid-16th century, based upon older styles of swordsmanship, and is one of the few ancient Japanese martial arts schools still existing today.

Kenjutsu (剣術) is an umbrella term for all (ko-budō) schools of Japanese swordsmanship, in particular those that predate the Meiji Restoration. Some modern styles of kendo and iaido that were established in the 20th century also included modern forms of kenjutsu in their curriculum. Kenjutsu, which originated with the samurai class of feudal Japan, means "methods, techniques, and the art of the Japanese sword". This is opposed to kendo, which means "the way of the sword" and uses a bamboo sword (shinai) and protective armour (bōgu).