Greece has lifted it’s requirement of a mandatory Covid-19 test for visitors from the US, Canada and many other countries.
Visitors from the European Union and Schengen Area, the UK and other non-EU countries that have joined the EU Digital Covid Certificate system, and from America, Canada and Australia, do not require a negative test for Covid-19 upon entering Greece if they are fully vaccinated.
Providing they have a valid vaccination certificate showing that they were fully vaccinated during the last nine months or have received a booster dose (without time restriction), or if they hold a Covid-19 recovery certificate valid for 180 days after the date of issue, they are able to enter and move freely within Greece.
The move (which applies to visitors aged 5 and over) is the latest initiative by the Greek authorities to boost tourism and support fully vaccinated visitors to Greece
Visitors who are not fully vaccinated may enter Greece by presenting a negative PCR test, performed within 72hrs of travel, or a negative Rapid Antigen test, performed within 24hrs of travel.
More information is here.