Kamen Rider Amazon (仮面ライダーアマゾン Kamen Raidā Amazon, Masked Rider Amazon in English) is a Japanese tokusatsu television series. The fourth installment to be produced as part of the Kamen Rider Series, the series aired in Japan from late 1974 to early 1975 on the Mainichi Broadcasting System. It was the shortest Kamen Rider series ever, lasting only 24 episodes due to the show's heavy amounts of graphic violence, and starred Tōru Okazaki as the title character.