No-No Boy is a 1957 novel, and the only novel published by the Japanese American writer John Okada. It tells the story of a Japanese-American in the aftermath of the internment of Japanese Americans during World War II. Set in Seattle, Washington, in 1946, the novel is written in the voice of an omniscient narrator who frequently blends into the voice of the protagonist.

John Kozo Okada was a Japanese American novelist known for his critically acclaimed novel No-No Boy.