Duda’s chief of staff, Krzysztof Szczerski, noted that the General Assembly will be held as the United Nations marks 75 years since it was established.
Formal debates will begin on Tuesday, September 22. Duda will take the floor remotely during the afternoon session on the second day.
Duda will be making his first major address of this kind since being sworn in as Polish president for a second term, Szczerski said.
He added that in a speech during ceremonies marking 75 years since the UN came into being, Duda would emphasize Poland's contribution to the work and development of the international body over the decades.
Meanwhile, on Wednesday, September 30, Duda will speak at a UN summit on biodiversity, Szczerski said.
Duda was sworn into his second term in office before both houses of Poland’s parliament in Warsaw on August 6.
He is scheduled to visit Italy and the Vatican next week on his first foreign trip after being re-elected as head of state.