Fearful Attack of the Flying Saucers (Japanese: 空飛ぶ円盤恐怖の襲撃, Hepburn: Soratobu Enban Kyōfu no Shūgeki) is a 1956 independent Japanese tokusatsu science fiction film directed and written by Shinichi Sekizawa, with special effects and cinematography by Sadao Uemura. Produced by Kokumotsu Films and distributed by Shintoho, it is Sekizawa's sole directorial credit and stars Tadao Takashima, Junko Ebata, Taiji Tonoyama, Hiroshi Sugi, Shigeru Amachi, and Junji Masuda. In the film, a group of Japanese scientists deal with a sudden alien invasion by inventing a rocket in order to save the planet.

Fearful Attack of the Flying Saucers was released nationwide in Japan by Shintoho on November 7, 1956. After its release, it was considered lost until a 16mm cut was found in 2010 and sold for auction online for ¥2.1 million. Plans were made for a DVD release following the auction, though they have yet to materialize.