This dog was not a good boy.

A pit bull bit a 7-year-old girl on the nose on the Upper West Side Thursday afternoon, cops said.

The dog attacked the little girl around 3:30 p.m. near the intersection of Broadway and W. 79th Street, police said.

Cops rushed the girl to Mount Sinai West — where she was treated for the cut on her nose, but expected to be otherwise OK, according to the NYPD.

The dog was handed over to Animal Care Center of NYC, cops said.

It was unclear whether the dog was on a leash. No tickets have been issued to the owner, police said.