Yayoi is a pre-historical era in Japan.

Yayoi is March in old Japanese calendar.

Yayoi can also refer to:

Yayoi (given name), a Japanese female given name Yayoi Kusama, a Japanese artist and writer Yayoi people, an ancient ethnic group Yayoi, Ōita, a town in Japan Yayoi, Tokyo, an area of Tokyo Japanese destroyer Yayoi, two destroyers Yayoi Sho, a Japanese horse race