The undefeated boxing champ paid a visit to the Bronx’s 46 Precinct, where he posed Saturday with a picture of the popular police officer.
The picture was posted on the Twitter account of a former FDNY paramedic, and retweeted by the precinct.
Familia, 48, a mother of three, was gunned down on a Bronx street early July 5 as she sat in a mobile command post by a deranged ex-con who had expressed hatred of cops.
The gunman, Alexander Bonds, 32, was shot and killed by responding police officers.
Mayweather’s visit followed a zany four-city press tour with Ultimate Fighting Championship star Conor McGregor to promote their Aug. 26 fight in Las Vegas.
Mayweather, flashing a peace sign as he stood in front of blue-and-white tribute bouquets, looked pensive as he stood in the precinct filled with officers still in mourning.
His demeanor was a far cry from the conduct on display during the fight promotion tour, which was filled with racist and homophobic taunts.
Mayweather dropped a homophobic slur last week when he called out the mixed-martial arts fighter, and said: “You punk, you fa—t, you ho.”
That came after McGregor made fun of Mayweather during a shadow boxing display.
“Dance for me, boy!” McGregor said.
McGregor also teased Mayweather over an unpaid tax bill.
Thousands filled a Bronx church and lined the streets for Familia’s funeral Wednesday at the World Changers Church.
Nearly 25,000 cops from 85 police agencies turned out for the farewell, spilling out onto the Grand Concourse.