The German pontiff will make the first Papal visit to this country in nearly three decades.
It is understood that the historic event is being timed to coincide with the beatification of Cardinal John Henry Newman, who is on the path to becoming the first British saint for 40 years.
Details of the visit, which will attract crowds of hundreds of thousands of people, are still under discussion, but cities being considered include London, Birmingham, Oxford, Edinburgh, Armagh and Dublin.