New York City’s Jewish fire commissioner, Robert Tucker, handed in his resignation first thing Wednesday — just one day after anti-Israel Mayor-elect Zohran Mamdani was elected, The Post has learned.

Tucker, a Jewish philanthropist and businessman, will step down from the role he has held for just over 12 months on Dec. 19, sources said.

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Fire Commissioner Robert Tucker speaking at a podium with a Fire Department City of New York emblem.Robert Tucker, a Jewish philanthropist and businessman, will step down from the role he has held for just over 12 months on Dec. 19. Paul Martinka

He will go back to running the private security firm he headed before joining Mayor Eric Adams’ administration, the sources added.

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Zohran Mamdani speaks after winning the mayoral election in New York.Democratic socialist Zohran Mamdani was elected New York City’s next mayor on Nov. 4, 2025. AP

News of Tucker’s resignation came just as the FDNY boss was set to fly to Israel later Wednesday to meet with a fire commissioner in the Jewish state.

Tucker’s reasons for tendering his resignation were not immediately clear. The Post has reached out to the commissioner for comment.