Naftali Herz Tur-Sinai (Hebrew: נפתלי הרץ טור-סיני; born 13 November 1886 – 17 October 1973) was a Bible scholar, author, and linguist instrumental in the revival of the Hebrew language as a modern, spoken language.

Tur-Sinai was the first president of the Academy of the Hebrew Language[1] and founder of its Historical Dictionary Project.

[2] Naftali Herz Tur-Sinai was born Harry Torczyner in Lemberg, Galicia, Austria-Hungary (later Lwów, Poland, now Lviv, Ukraine) in 1886.

He was professor of Semitic languages at the Hebrew University of Jerusalem and a member of the Israel Academy of Sciences and Humanities.

Tur-Sinai's nephew, Jacques Torczyner, is a former president of the Zionist Organization of America.