三原, meaning "three, field", may refer to:
Mihara (surname)
Places Mihara, Hiroshima, a city in Hiroshima Prefecture Mihara Station, a railway station in Mihara, Hiroshima Mihara Castle, a castle that was located in Mihara, Hiroshima Mihara, Hyōgo, a former town in Hyōgo Prefecture Mihara District, Hyōgo, a former district in Hyōgo Prefecture Mihara, Kōchi, a village in Kōchi Prefecture Mount Mihara, a volcano on Izu Ōshima Sanyuan County
See also