Korean ethnic nationalism, or Korean racial nationalism, is a political ideology and a form of ethnic and racial identity for Korean people. It is based on the belief that Koreans form a nation, a race, and an ethnic group that shares a unified bloodline and a distinct culture. It is centered on the notion of the minjok, a term that had been coined in Imperial Japan ("minzoku") in the early Meiji period. Minjok has been translated as "nation", "people", "ethnic group", "race", and "race-nation". It has been described by several observers as racist, chauvinist, and ethnosupremacist.

Shin Chae-ho, or Sin Chaeho, was a Korean independence activist, historian, anarchist, nationalist, and a founder of Korean nationalist historiography. He is held in high esteem in both North and South Korea.