Kitahara (written: 北原) is a Japanese surname. Notable people with the surname include:
Hakushū Kitahara or Kitahara Ryūkichi (1885–1942), Japanese tanka poet
Kana Kitahara (born 1988), Japanese footballer
Kenji Kitahara (born 1976), former Japanese football player
Koki Kitahara or Tatsumi Kitahara (born 1964), Japanese professional wrestler
Mie Kitahara (born 1933), Japanese actress
Rie Kitahara (born 1991), Japanese singer and actress
Sayaka Kitahara (born 1993), Japanese pop singer, voice actress, and actress
Wataru Kitahara (born 1982), Japanese futsal player
