Green Ukraine, also known as Zelenyi Klyn or Zakytaishchyna, is a historical Ukrainian name for the land in the Russian Far East area between the Amur River and the Pacific Ocean, an area roughly corresponding to Outer Manchuria.

Ukrainians are an East Slavic ethnic group native to Ukraine. The native language of the Ukrainians is Ukrainian. The majority of Ukrainians are Eastern Orthodox Christians, some Ukrainians are also Greek Catholic Christians.