Yes, with an EASA Private Pilot Licence (PPL), you may be allowed to fly ultralight aircraft; however, the regulations governing ultralight aircraft are determined by each individual EASA member state. This means that while your PPL provides a solid foundation, you may still need to meet additional national requirements to fly ultralights.
In some countries, this could involve additional training, an endorsement, or even a separate ultralight license. It’s best to consult with the national aviation authority or a local flight school in your country to understand any specific requirements for operating ultralight aircraft.
In addition, some EASA member states allow flight hours in ultralight aircraft to count towards the revalidation of your Single Engine Piston (SEP) rating under the PPL, provided you meet certain criteria. This can help you maintain your license's currency while flying ultralights.