King Charles and Queen Camilla will visit the Big Apple for a whirlwind tour Wednesday — marking the first time the pair has been in the five boroughs in 19 years.

The royals will pay their respects at downtown’s 9/11 Memorial & Museum before popping into the New York Public Library in Midtown and a community center in Harlem as part of their daylong tour of Manhattan. The trip comes on the heels of their visit to Washington, DC.

The couple has not been on New York City soil for nearly two decades.

How The Post told the story of Prince William and Princess Kate holding court with Beyonce and Jay-Z at the Barclays Center during their 2014 trip.…