All-Russian nation

The All-Russian nation (Russian: общерусский народ, romanized: obshcherussky narod) or triune Russian nation (триединый русский народ, triyediny Russky narod), also called the pan-Russian nation, is the term for the Imperial Russian and later irredentist ideology that sees the Russian nation as comprising a "trinity" of sub-nations: Great Russia, Little Russia, and White Russia. Respectively, these sub-nations are contextually identified with Russians, Ukrainians (usually including the Rusyns), and Belarusians. Above all, the basis of the ideology's upholding of an inclusive Russian identity is centered around bringing all East Slavs under its fold.

An imperial dogma focused on nation-building became popular in the Tsardom of Russia and the Russian Empire, where it was consolidated as the official state ideology; the sentiment of the triune nationality of "All-Russian" was embraced by many imperial subjects, including Jews and Germans, and ultimately served as the foundation of the Russian Empire.