Kamen Rider Kuuga (Japanese: 仮面ライダークウガ, Hepburn: Kamen Raidā Kūga, stylized in English as Masked Rider Kuuga) is a Japanese tokusatsu television series. It is the tenth installment of the popular Kamen Rider Series of tokusatsu shows and the first of the series to air entirely in the Heisei period, as well as the first standalone Kamen Rider TV series since Kamen Rider Black RX and the first series of the revived run of Kamen Rider, bringing Kamen Rider into the 21st century.

It was a joint collaboration between Asatsu-DK and Toei, and was shown on TV Asahi from January 30, 2000, to January 21, 2001, replacing Moero!! Robocon in its timeslot. Kamen Rider Kuuga is the first Kamen Rider Series to be broadcast in a widescreen (letterboxed) format, albeit cropped during airing. It aired alongside Mirai Sentai Timeranger.