Godzilla vs. Megalon (ゴジラ対メガロ, Gojira tai Megaro) is a 1973 Japanese science fiction kaiju film produced by Toho. Directed and co-written by Jun Fukuda with special effects by Teruyoshi Nakano, the film starred Katsuhiko Sasaki, Hiroyuki Kawase, Yutaka Hayashi, and American actor Robert Dunham. It was the thirteenth film in the Godzilla franchise.