Naito Takaharu (????) (1862 - 1929) was a Japanese martial artist.
A swordsman of the Hokushin Itto-ryu, Naito taught kendo to the Japanese Police force, and was also the first teacher at the Budo Senmon Gakko.
He helped to create the Dai Nihon Teikoku Kendo Kata, a group that promulgated the practice of kendo in Japanese schools and universities under the auspices of the Dai Nippon Butoku Kai.Naito was a skilled exponent of the use of kiai in kendo, and it is recorded that he used this ability in a match with Takano Sazaburo.
Despite not striking a single blow in the contest, and being hit repeatedly on the kote (wrist guard) and men (protective helmet), Naito was judged to have displayed a superior level of swordsmanship, because he was able to receive Takano's attacks without any sign of concern.