Inoue Tetsujirō (井上 哲次郎, February 1, 1855 – December 7, 1944) was a Japanese philosopher, poet and educator.

He became the first Japanese professor of philosophy at Tokyo Imperial University, and also served as the 2nd President of Daito Bunka Academy.

He condemned Christianity as fundamentally incompatible with the theocratic, polytheistic Japanese polity and thus considered its followers "inherently disloyal" to Japan.

[4] Inoue's support of imperialism established him as opposed to the ideas of other proponents of International Education, such as Shimonaka Yasaburo, Noguchi Entaro, and Izumi Tetsu.

Inoue was the most prolific and prominent promoter of bushido ideology in Japan before 1945, authoring dozens of works and giving hundreds of lectures on the subject over almost half a century.