The brother of the Big Apple’s top cop called mayor-elect Zohran Mamdani an “enemy” of Jewish people during a fiery charity dinner speech where he railed about the future of the city.

Benjamin Tisch — younger brother of police Commissioner Jessica Tisch — was presenting an award Wednesday evening during the Met Council’s annual holiday dinner when the top exec at the Loews Corporation skewered the radical DSA lawmaker, according to sources.

The comments come just weeks after Jessica Tisch accepted an offer from the Mamdani to stay on as police commissioner — despite being far apart on a number of issues, including bail reform, raise the age and Israel.

The Tisch family, excluding Jessica, spent millions during the mayoral election to back Mamdani’s top foe, Andrew Cuomo, in an attempt to stave off the socialist mayor.