A female stranger snatched a 4-year-old boy away from his grandmother outside a Brooklyn McDonald’s this week – before the kid’s quick-thinking mom, an off-duty NYPD cop, managed to save him, authorities and sources said Wednesday.

The creep pulled the boy away from his 66-year-old grandma around 5 p.m. Monday outside the fast food joint on Eastern Parkway near Utica Avenue in Crown Heights, according to authorities and law enforcement sources.

The brazen kidnapper tried crossing the street with the boy – but was thwarted when his cop mom grabbed him back, the sources said.

A complete stranger pulled a 4-year-old boy away from his grandma outside the Eastern Parkway fast food joint Monday, cops said. NYPD CrimestoppersThe would-be abductor ran off when the boy’s NYPD cop mom grabbed him back, sources said. NYPD Crimestoppers

The would-be captor then fled without the boy, and no injuries were reported, according to police.

The NYPD is looking for the public’s help in tracking down the suspect, who is pictured in surveillance images wearing a white shirt, black shorts and black sandals. 

Anyone with information on her whereabouts is asked to call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). 

The boy and his mother were standing outside the Crown Heights eatery around 5 p.m. when the shocking incident happened, sources said. William C Lopez/NY Post

The public can also submit their tips by logging onto the Crime Stoppers website at https://crimestoppers.nypdonline.org/, or on X @NYPDTips.

All calls are strictly confidential.