Fortunately, there are no big differences between the driving laws and regulations of Greece and those in the European Union, the United States, and the rest of the world. There are, however, small variations you should keep in mind.

For many Americans, driving in Greece is a rewarding way to see the mainland and larger islands like Crete or Naxos, but it requires a specific mindset and documentation. To drive legally in 2026, Americans must have an International Driving Permit (IDP) alongside their valid U.S. state driver's license; rental agencies often won't hand over the keys without it. While Greek highways (the "National Roads") are modern and well-maintained, driving in cities like Athens is notoriously chaotic and should be avoided by visitors. On the islands, roads are often extremely narrow, winding, and poorly lit at night, with frequent encounters with goats or slow-moving agricultural vehicles. Greeks tend to drive aggressively, often using the shoulder as an extra lane for passing. If you are comfortable with a manual transmission (automatics are more expensive and harder to find) and have experience with narrow mountain roads, driving is "worth it." However, for many, the stress of navigating and parking in tiny villages makes the efficient Greek ferry and bus (KTEL) systems a much more relaxing choice.