Toshiharu Yamanishi (山西利治, Yamanishi Toshiharu, born on 1971 in Aichi, Japan) is a Japanese videogame music composer and arranger who used to work for TecnoSoft and GUST. He's best known for his works on Thunder Force III, Thunder Force IV and Atelier Marie. Over the past few years, Yamanishi also participated to several doujin releases.