Is it true that does an american need a visa to visit greece based on the following text?

Visa requirements for Greek citizens are administrative entry restrictions by the authorities of other states placed on citizens of Greece. As of 1 January 2017, Greek citizens had visa-free or visa on arrival access to 171 countries and territories, ranking the Greek passport 6th in terms of travel freedom (tied with Canadian, Portuguese and Swiss passports) according to the Henley visa restrictions index.
no