Do Germany passport holders need a visa to visit HR?

No visa needed. As an EU citizen, a German passport holder can enter Croatia freely under EU freedom of movement using a valid passport or national ID card. No ETIAS, no EES registration, no time limit on stays. Both Germany and Croatia are EU member states, and Croatia joined the Schengen Area on 1 January 2023. Under EU freedom of movement, German citizens have an unrestricted right to enter, travel, and reside in Croatia carrying either a valid German passport or a valid German national identity card (Personalausweis). No visa is required for any length of stay, whether for tourism or longer. The Schengen 90/180 short-stay rule and ETIAS/EES requirements apply only to non-EU/EEA/Swiss nationals, not to EU citizens, so they do not affect German travelers. Border checks at internal Schengen borders are normally absent, though any Schengen state may reintroduce temporary controls in extraordinary circumstances, in which case travelers must be able to present a valid passport or ID card. The only practical requirement is to carry a valid identity document; for a passport, at least 90 days of residual validity beyond the planned departure date is recommended, though as an EU citizen Croatia cannot refuse entry solely on document-validity grounds if identity and nationality can otherwise be established.