Kenji Adachihara (足立原 健二, Adachihara Kenji, 8 November 1984) is a former Japanese footballer.
He played for various clubs in Indonesia and Singapore throughout his career.
He went to Narashino High School and Ryustu Keizai University Kashiwa High School.
Kenji made his debut for Persib against Persipura Jayapura on 13 January 2013.
This biographical article related to a Japanese association football forward, born in the 1980s is a stub.