According to the Convention on Road Traffic European law only European driving license and the countries that have signed the Vienna Convention are allowed to drive in Greece below are the countries that can drive in Greece

Albania, Armenia, Austria, Azerbaijan, Bahamas, Bahrain, Belarus, Belgium, Bosnia & Herzegovina, Brazil, Bulgaria, Central African Republic, Chile, Costa Rica, Cote d’ Ivoire, Croatia, Cuba, Czech Republic, Cyprus, Democratic Republic of Congo, Denmark, Ecuador, Estonia, Finland, France, Georgia, Germany, Ghana, Guyana, Holy See, Hungary, Iceland, Indonesia, Iraq, Iran, Ireland, Israel, Italy, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Latvia, Liberia, Lichtenstein, Lithuania, Luxembourg, Malta, Mexico, Monaco, Mongolia, Montenegro, Morocco, Netherlands, Niger, Norway, Pakistan, Peru, Philippines, Poland, Portugal, Qatar, Republic of Korea, Republic of Moldova, Romania, Russian Federation, San Marino, Saudi Arabia, Senegal, Serbia, Seychelles, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Tajikistan, Thailand, The former Yugoslav Rep. of Macedonia, Tunisia, Turkey, Turkmenistan, Ukraine, United Arab Emirates, UK of Great Britain & Northern Ireland, Uruguay, Uzbekistan, Venezuela, Vietnam, Zimbabwe.