President-elect Donald Trump called slain NYPD Sgt. Paul Tuozzolo’s widow Thursday morning and personally extended his “condolences” to her on the day that thousands of police officers paid tribute to the fallen Finest at his funeral.

“I’m very sorry I cannot be there with you today. My thoughts and prayers are with you and your family during this difficult time,” Trump told the grieving woman, according to a source.

“I want to express my condolences from me and my family.”

Tuozzolo, a married father of two, was shot and killed last week by 35-year-old ex-con Manuel Rosales. Tuozzolo had been responding to a report of a break-in.

Thousands of cops gathered on Long Island on Thursday for Tuozzolo’s funeral.

A line of officers extended for nearly a mile as a hearse carrying his flag-draped casket made its way to St. Charles & Resurrection Cemetery in East Farmingdale for his interment.

Friends and family described the 19-year veteran as a “family man” and “protector” who was willing to do anything he could to save lives.

Trump has been a vocal supporter of the NYPD, even mentioning them in his victory speech Tuesday night.

“Law enforcement in New York City. They are here tonight. They are spectacular people,” he said. “Sometimes underappreciated, unfortunately — but we appreciate them.”

Thousands of officers lined the streets of Long Island for an emotional goodbye:

