All calls into Turkey by P&O Cruises and Cunard ships have been cancelled for the whole of next year.
The sister lines confirmed that Turkish ports of call have been replaced with alternatives in Greece and Albania,
A joint statement from the Carnival UK brands said: “After careful consideration, we have taken the decision to remove Turkey from all itineraries in 2017 for both Cunard and P&O Cruises, based upon various sources including advice given by the UK’s Foreign and Commonwealth Office.
“The Turkish ports have been replaced with either Greek ports of call or Sarande which is in Albania.”
Turkey has been the target of numerous terrorist attacks this year, most notably on Istanbul airport in June, which killed 26 people.
The country also suffered from a failed military coup.
Crystal Cruises, Disney Cruise Line and MSC Cruises dropped calls in Turkey this year.