Sheikh Mohamed bin Zayed, Crown Prince of Abu Dhabi and Deputy Supreme Commander of the Armed Forces, on Friday received a call from Kyriakos Mitsotakis, Prime minister of Greece.
Mr Mitsotakis thanked the UAE for providing assistance to people affected by the wildfires and sending firefighting equipment, while Sheikh Mohamed expressed the UAE's solidarity with Greece in difficult circumstances.
The leaders also discussed several issues of mutual concern.
The UAE this week sent an aircraft loaded with supplies to Greece to help battle fires that have swept across the country.
The government and its largest charity, Emirates Red Crescent, provided the helicopter and a large quantity of firefighting equipment and civilian aid.
A helicopter used to douse flames and dampen ground was also sent.
Fires have burned through hills and suburbs around the capital Athens in recent days, while images of out-of-control blazes on the island of Evia have spread around the world.
Abu Dhabi National Oil Company provided some of the aid materials and equipment sent by Emirates Red Crescent.