(b.1958) Nihon Ki-in pro, 9 dan in 1985.
Miyagawa Fumihiko is his pupil. Yamashiro grew up with go, as he became a professional in 1972. He would eventually join the Nagoya branch of the Nihon Ki-in. He became a 9 dan in 1985 after winning the Okan. He has challenged for many of Japan's biggest titles (the 16th Kisei, 32th Oza, 18th Tengen and 41th, 42th and 48th Honinbo).
Yamashiro obtained 1,000 wins in his career on 2008-07-07 (10th player of the Nihon Kiin).
In 2010 Yamashiro won the 51th Okan for the 15th time (Okan is the only title he won).
Style: Rin Kaiho said in 1992 that Yamashiro's old style "was a steady, territorial player, but recently he sets up large moyos, and he's also flexible enough to switch from moyos to territory." (Tournament Go 1992)