Yongary, Monster from the Deep (Korean: 대괴수 용가리; Hanja: 大怪獸 용가리; RR: Daekoesu Yonggari, lit. 'The Great Monster Yonggary') is a 1967 kaiju film directed by Kim Ki-duk, with special effects by Kenichi Nakagawa. The film was a joint production between South Korean studio Keukdong (Far East) Entertainment Company and Japanese studio Toei Company. The film stars Oh Yeong-il, Kwang Ho Lee, Nam Jeong-im, with Cho Kyoung-min as Yongary. In the film, a giant reptilian monster lays waste to Seoul after being awakened by an earthquake triggered by a nuclear bomb test.

The film was produced to rival the success of Toho's Godzilla series and features the same techniques of practical special effects filmmaking used in the Godzilla films and other kaiju films utilizing suitmation, pyrotechnics, and miniature sets. The film opened in Seoul, South Korea on August 13, 1967 and was released in the United States directly to television by American International Television in 1969 as Yongary, Monster from the Deep. In 1999, filmmaker Shim Hyung-rae released a reimagining of his own titled Yonggary.