Kawahara (written: 川原, 河原 or かわはら in hiragana) is a Japanese surname. Notable people with the surname include:
Hiroyuki Kawahara (川原 弘之, born 1991), Japanese baseball player
Kazuhisa Kawahara (河原 和寿, born 1987), Japanese footballer
Kazune Kawahara, Japanese manga artist
Keiga Kawahara (川原慶賀, 1786–1860?), Japanese painter
Masatoshi Kawahara (川原 正敏, born 1960), Japanese manga artist
Natsumi Kawahara (かわはら なつみ, born 1981), Japanese manga artist
Nozomi Kawahara (born 1970), Japanese golfer
Reki Kawahara (川原 礫, born 1974), Japanese writer
Sarah Kawahara, Canadian figure skater and choreographer
Shigeto Kawahara (川原 繁人, born 1980), Japanese linguist
Shugo Kawahara (川原 周剛, born 1980), Japanese footballer
Tatsuya Kawahara (川原 達也, born 1985), Japanese footballer
Yoshihisa Kawahara (川原 慶久, born 1976), Japanese voice actor
Yumiko Kawahara (川原 由美子, born 1960), Japanese manga artist
