Great Monster Battle: Daigoro vs. Goliath) is a 1972 Japanese tokusatsu kaiju film directed and written by Toshihiro Iijima, with special effects by Jun Oki and Minoru Nakano.

Co-produced by Tsuburaya Productions and Toho Studios, the film stars Hiroshi Inuzuka and Akiji Kobayashi.

[3] Tsubaraya initially wanted to produce a historical drama to celebrate their 10th anniversary, but due to budget limitations and the excessive bureaucracy that would've been involved it was instead decided to produce a kaiju film[3] Due to his experience directing other Tsuburaya Productions such as Ultra Q and Ultraman, Toshihiro Iijima was selected as director and would also write the screenplay under the pseudonym Kitao Senzoku (his second writing effort under the name after an episode of Return of Ultraman).

[3][4] The film was to be titled Godzilla vs. Redmoon and came close to starting production with Shohei Tôjô as director and special effects by Kazuo Sagawa until ultimately being cancelled for unknown reasons.

These scrapped scripts were later reused for Gamera the Brave, Ultraman Tiga by Tsuburaya Productions, and Digimon Tamers.