The Catholic News Agency reported on Sunday that Francis will visit the UN on September 25 and address the assembly.
Sept. 25 is also the opening day of the high-level summit on the post-2015 development agenda when world leaders will agree on goals to replace the MDGs.
The pope is likely to address poverty, the plight of refugees, the persecution of Christians, climate change and religious freedom in his speech before the 193-member assembly. It is not yet clear if he will address the post-2015 summit.
The Vatican, or Holy See as it is know diplomatically, is a non-member observer state of the United Nations, joining the organization in 1964.
The following year, Paul VI became the first pontiff to address the assembly where he called for an end to war. John Paul II visited the UN twice, in 1979 and 1995. In the latter visit he spoke of the growth of unhealthy forms of nationalism. Benedict XVI’s speech in 2008 praised the UN as a defender of human rights but said those rights come from God and no government or religion has a right to limit human rights.
The Vatican’s cachet in diplomatic circles has increased in recent weeks after the White House said that it was instrumental in bringing to a close the 40-year US embargo of Cuba. Pope Francis was the only world leader mentioned by US President Barack Obama in his state of the union address on Tuesday.
Francis will come to New York from DC where he will address a joint session of Congress. From New York, he will travel to Philadelphia.
- Denis Fitzgerald
On Twitter @denisfitz