(Stephen Levin/Facebook)

A treasured Brooklyn monument celebrating locals who served in the Civil War was trashed yesterday by vandals who dumped buckets of paint on the statue.

The Greenpoint Monitor Statue — which depicts a man working on the USS Monitor, the Civil War ironclad battleship — now has its head, shoulders and chest covered in white paint.

The bold vandal went so far as to scribble the initials “JJ” in the same paint near the bottom of the McGolrick Park statue.

“The neighborhood has a big historic connection to the Monitor because it was built in Greenpoint and stationed in Greenpoint,” said Phil DePaolo, a community activist. “It was big slap in the face to the community.”

Police could not immediately comment on the defacement.