Spain to Italy visa requirements

No. Spain and Italy are both EU member states and part of the Schengen Area, so a Spanish ordinary passport holder needs no visa to visit Italy. You may enter and stay freely under EU freedom of movement using either a valid Spanish passport or a valid national ID card (DNI). ETIAS does not apply to EU citizens. Spain (ES) and Italy (IT) are both members of the European Union and the Schengen Area. As an EU citizen, a Spanish national exercises the right of free movement and may travel to, enter, and stay in Italy without any visa, residence permit, or entry authorisation for stays of up to three months. The only requirement is a valid travel document: either a valid Spanish ordinary passport or a valid Spanish national identity card (DNI), valid on the day of travel. Because Spain and Italy are both inside the Schengen Area, there are normally no systematic identity checks at internal borders, though either country may temporarily reintroduce border controls in exceptional circumstances, so you should always carry valid ID. The Schengen 90/180-day short-stay rule and the new Entry/Exit System (EES) apply only to non-EU travellers; they do NOT apply to EU citizens such as Spaniards. Likewise, ETIAS (rolling out for visa-exempt non-EU nationals) does not apply to EU citizens. For stays beyond three months, an EU citizen has the right to remain but should register their presence/residence with the local Italian authorities (anagrafe at the comune); this is a registration formality, not a visa.