Charles and Camilla have postponed their official Spring tour due to the coronavirus on the advice of the Government.
They had been due to visit Bosnia and Herzegovina, Cyprus and Jordan.
The official visits are expected to be rescheduled for a later date.
A Clarence House spokesman said: “Owing to the unfolding situation with the coronavirus pandemic, The British Government has asked Their Royal Highnesses to postpone their spring tour to Bosnia and Herzegovina, Cyprus and Jordan.”
It is understood both Charles and Camilla are in good health.
The tour could be replaced with engagements in the UK - though not those involving significant gatherings of people.
The trip was to be the first official royal visit to Cyprus for 27 years.
Charles was set to visit Bosnia and Herzegovina on March 17 and 18.
He was to be joined by Camilla in Cyprus from March 18 to 21, before they would have headed to Jordan together until March 25.
