Yamada Yoshio (山田 孝雄, August 20, 1873 – November 20, 1958) was a Japanese linguist.
He founded the influential "Yamada grammar" (Also known as "Yamada's grammar", and was the first to use the word "chinjutsu" as a linguistic term.
Yamada Yoshio's grammar was first published in 1912 and underwent several changes and reprints.
[1] Yamada's grammar greatly influenced 20th century scholarship in Japan.
A Descriptive and Comparative Grammar of Western Old Japanese (2 vols): Revised, Updated and Enlarged Second Edition.