| Go Osaka | |
| Birth Date: | 1943 11, df=yes |
| Birth Place: | Bunkyo, Tokyo, Japan |
| Occupation: | Writer |
| Language: | Japanese |
| Period: | 1980–present |
| Genre: | Crime fiction, hardboiled, thriller, spy fiction, western fiction |
| Notableworks: | The Red Star of Cádiz |
| Awards: | Mystery Writers of Japan Award (1987) Naoki Prize (1987) |
is a Japanese writer of crime fiction, hardboiled, thriller, spy fiction and western fiction. He served as the 11th President of the Mystery Writers of Japan from 2001 to 2005. Outside of his literary works, he is also known for his interest in Flamenco music. He is a competent guitarist in his own right and has several guitars around his office.
Espionage novels set in Iberian Peninsula during World War II.