Maria Fyodorovna Kostyuk (Russian: Мария Фёдоровна Костюк; born 3 March 1977) is a Russian politician serving as the acting Governor of Jewish Autonomous Oblast since November 2024.

[1] Maria Kostyuk was born in the urban locality of Smidovich, Jewish Autonomous Oblast, in 1977.

In 2000, she graduated from the Birobidzhan State Pedagogical Institute with degrees in philology and history.

In 2013, she graduated from the Khabarovsk State University of Economics and Law with a degree in public administration.

From 2017 to 2019, she served as assistant to the Russian Federation Senator from Jewish Autonomous Oblast Rostislav Goldstein.