A knife-wielding man was shot by private security guards outside the Macy’s in the Bronx’s Parkchester development, cops said.

The shooting happened just before 4:45 p.m. Thursday when a man in his 30s, armed with a knife, was threatening random people walking on Metropolitan Avenue, according to the NYPD.

A Parkchester Public Safety Officer fired three shots at the man, striking him at least once in the abs and buttocks, after he refused to drop the blade, cops said.

The man, whose name was not released, was taken to Jacobi Medical Center and was expected to survive.

The security guard was also taken to Jacobi for unspecified reasons. He did not appear to be seriously injured.

A knife was recovered at the scene and the NYPD was investigating.