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 drama and the fourth installment of the Kamen Rider Series. Debuting as the forth entry of the Showa Era, the series aired from October 19, 1974 to March 29, 1975 on NET and the Mainichi Broadcasting System. With 24 episodes produced and aired, it is the shortest Kamen Rider series ever.