Miyahara (written: 宮原) is a Japanese surname. Notable people with the surname include:
Atsuji Miyahara (宮原 厚次, born 1958), Japanese sport wrestler
Jeff Miyahara (born 1977), American record producer
Kento Miyahara (宮原 健斗, born 1989), Japanese professional wrestler
Mieko Miyahara (宮原 美江子, born 1960), Japanese fencer
Misako Miyahara (宮原 美佐子, born 1962), Japanese long-distance runner
Nami Miyahara (宮原 永海, born 1978), Japanese singer and voice actress
Satoko Miyahara (宮原 知子, born 1998), Japanese figure skater
Takashi Miyahara (宮原 巍, born 1934), Nepalese businessman and politician
Toshiyuki Miyahara (born 1958), Japanese water polo player
Yu Miyahara, Japanese sport wrestler
Yuji Miyahara (宮原 裕司, born 1980), Japanese footballer
