Toshiyuki Hayashi (林敏之, Hayashi Toshiyuki), (born 8 February 1960 in Tokushima) was a Japanese rugby union player. He played as a prop and as a lock. He was educated at Tokushima Prefectural Johoku High School and was graduated in economics at Doshisha University. He was nicknamed Destroyer (壊し屋, Kowashiya) and Daimaru (ダイマル, Daimaru).