These skaters are on a roll — all over the memory of Frederick Douglass.

The memorial plaza at the northwest corner of Central Park is cracked, scratched and covered in wax, thanks to punks who’ve turned it into their personal skate park.

“There’s kind of a war going on,” said Algernon Miller, the Harlem artist who created the granite plaza.

The monument was a paradise for Tony Hawk wannabes the second it opened in 2010.

At the center of Frederick Douglass Circle are stone slabs with quotes from the abolitionist leader, a 60-foot-long bronze wall and plenty of steps and railings.

“One kid told me, ‘I’ve been waiting for this place to open for years,’ ” Miller said.

Skateboarder James Fuller, 20, of Newark, said Frederick Douglass would have welcomed the skaters.

“We’re just people enjoying the monument,” he said.