Yes, travel insurance is required for a Poland Visit Visa. The insurance needs to cover at least €30,000 for medical emergencies, hospitalization, and repatriation within the Schengen Area. You must include the insurance certificate with your visa application, and it should be valid for your entire trip. Applications can be denied if you don't have valid travel insurance. Even if you don't need a visa, it's a good idea to have insurance to protect against unexpected costs when visiting Poland or other Schengen countries.