Boris (Boaz) Abramovich Trakhtenbrot (Russian: Борис Авраамович Трахтенброт, Hebrew: בועז טרכטנברוט; 19 February 1921 – 19 September 2016) was a Russian-Israeli mathematician in logic, algorithms, theory of computation, and cybernetics.

Trakhtenbrot was born into a Jewish family in Brichevo, northern Bessarabia (now Tîrnova, Moldova).

[3][4] In 1964 Trakhtenbrot discovered and proved a fundamental result in theoretical computer science called the gap theorem.

[6] After immigrating to Israel in 1981, he became a professor in the Faculty of Exact Sciences at Tel Aviv University, and continued as professor emeritus until his death.

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