Genetic and anthropometric studies on Japanese people

In population genetics, extensive research has been done on the genetic origins of modern Japanese people.

Historically, Japanese people received genetic contributions from peoples related to the Jōmon period, Yayoi period, and arguably, the Kofun period (Toraijin).

Genetically, they are categorized into three separate, but related groups: Ainu, Ryukyuan and Mainland (Yamato). According to modern genetic analyses, they primarily have Northeast Asian, East Asian, and to a lesser extent, heterogeneous Jōmon ancestries.

Anthropologically, they are classified under the "Northeast Asian" cluster and show strong resemblance with Koreans and to an extent, southern East Asian groups.