A few months ago, Mayor de Blasio said he hoped Pope Francis would visit the city “some day.”

On Monday, the mayor extended an official invitation.

Without his own direct pipeline to the Vatican, de Blasio transmitted the invite through Timothy Cardinal Dolan.

“I’ve been very clear that I hope he will visit New York City,” the mayor said at a press conference on school enrichment programs in Brooklyn.

“We sent a formal request through Cardinal Dolan asking for a papal visit, so I’m hopeful that we’ll have a chance for that, perhaps next year.”

Pope Francis has yet to respond.

“There has been no word from the Vatican on a visit by Pope Francis to New York (or to anywhere else in the United States, for that matter), so we wait — prayerfully and hopefully!” said Joseph Zwilling, spokesman for the Archdiocese of New York.

In April 2008, Pope Benedict XVI visited Ground Zero, Yankee Stadium, and the U.N. during his trip to the Big Apple..

The mayor is headed to Italy on Friday for a 10-day vacation and official trip.