Do Finland passport holders need a visa to visit PL?

No visa needed. As an EU citizen, a Finnish ordinary passport holder enjoys full freedom of movement and can enter Poland for tourism with just a valid Finnish passport or national ID card, with no time limit for short stays. Finland and Poland are both members of the European Union and the Schengen Area. Under the EU's freedom of movement rules, a Finnish citizen does not need a visa, an entry permit, or an ETIAS authorisation to visit Poland. You may travel with either a valid Finnish passport or a valid Finnish national identity card (the ID card must carry travel entitlement). Because both countries are inside Schengen, there are normally no border checks at internal frontiers, though you should always carry a valid travel document to prove your identity if asked. The Schengen 90/180 short-stay rule applies to visa-exempt non-EU nationals, NOT to EU citizens: as a Finnish citizen you may remain in Poland beyond 90 days, though stays longer than three months trigger a simple registration of residence with local authorities. ETIAS, expected to launch in late 2026, applies only to visa-exempt non-EU travellers and never to EU citizens such as Finns. There are no fees, applications, or processing times for this route.