三原

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