It is the 43rd time that he has visited Northern Ireland, first as Prince of Wales and now as King.
On Monday, it was announced that he is due to make his first visit to the Republic of Ireland since he became the King.
No date has been confirmed but it is expected to take place next year.
The invitation came from Irish President Catherine Connolly, who is currently on an official visit to England.
The King’s mother, the late Queen Elizabeth II, paid a state visit to Ireland in 2011, the first by a British monarch since Irish independence.
The first visit by the King to Northern Ireland was back in 1961 with his mother, his father the Duke of Edinburgh and his sister Princess Anne.