- "In times long past, the people of Japan found their gods in all things. Nature was their temple."
- —Nyssa al Ghul[src]
Japan was an island nation in East Asia. Located in the Pacific Ocean, it lied to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south. It was also the country that the Yamashiro family was from. The inhabitants of Japan spoke the Japanese language.
- Akio Yamashiro (moved to Hong Kong, China; deceased)
- Maseo Yamashiro (moved to Hong Kong, China; deceased)
- Tatsu Yamashiro (moved to Hong Kong, China; deceased)
- Nyssa al Ghul (deceased)
- Rip Hunter (deceased)
- Wally West (deceased)