Japan national football team
The Japanese team is commonly known by the fans and media as , , or as abbreviated expressions. Although the team does not have an official nickname as such, it is often known by the name of the manager. For example, under Takeshi Okada, the team was known as . Recently, the team has been known or nicknamed as the "Samurai Blue", while Japanese news media during the 2018 FIFA World Cup still referred it to by the recently departed manager's (Akira Nishino) last name, as .
Japan women's national football team
Following the increase in public interest in women's football in Japan, the JFA organized a public contest to select a nickname for the team. "Nadeshiko Japan" was chosen from among about 2,700 entries and was announced on 7 July 2004. "Nadeshiko", a kind of dianthus, comes from the phrase "Yamato Nadeshiko" (大和撫子, "ideal Japanese woman").