Son of Godzilla (Japanese: 怪獣島の決戦 ゴジラの息子, Hepburn: Kaijū-tō no Kessen: Gojira no Musuko, lit. Monster Island's Decisive Battle: Godzilla's Son) is a 1967 Japanese kaiju film directed by Jun Fukuda, with special effects by Sadamasa Arikawa, under the supervision of Eiji Tsuburaya. Produced and distributed by Toho Co., Ltd, it is the eighth film in the Godzilla franchise. It stars Tadao Takashima, Akira Kubo, Akihiko Hirata, and Beverly Maeda, with Hiroshi Sekita, Seiji Onaka, and Haruo Nakajima as Godzilla, and Marchan the Dwarf as Minilla.

Son of Godzilla received a theatrical release in Japan on December 16, 1967, it received mixed reactions from critics and audience. It was released directly to television in the United States in 1969 through the Walter Reade Organization.

The film was followed by the ninth film in the Godzilla franchise, Destroy All Monsters, released on August 1, 1968.