Croatia’s position on the Adriatic makes it a crossroads of Central Europe and the Mediterranean — a place where coastlines, rivers and mountain passes shape trade, travel and local identities. Whether you’re planning a road trip or studying regional geography, knowing who neighbors Croatia helps make sense of its routes and history.
There are 6 countries that border Croatia, ranging from Bosnia and Herzegovina to Slovenia. For each country you’ll find below a concise entry organized by Flag, Border type, Border length (km) so you can quickly compare neighbors and plan next steps — you’ll find below.
Which country shares the longest land border with Croatia?
Bosnia and Herzegovina has the longest land border with Croatia, a result of Croatia wrapping around much of Bosnia’s coastline and interior; that long frontier shapes many local crossings, trade links and cultural ties.
Does Croatia have maritime borders with any neighbors?
Yes — Croatia shares a maritime boundary with Italy in the Adriatic Sea (in addition to land borders with most neighbors), so some connections are sea-based and subject to maritime delimitation rather than simple land lines.
Countries that Border Croatia
| Country | Flag | Border type | Border length (km) |
|---|---|---|---|
| Bosnia and Herzegovina | 🇧🇦 | land | 1,000 |
| Slovenia | 🇸🇮 | land | 670 |
| Hungary | 🇭🇺 | land | 348 |
| Serbia | 🇷🇸 | land | 241 |
| Montenegro | 🇲🇪 | land | 25 |
| Italy | 🇮🇹 | maritime | 1,000 |
Descriptions
Bosnia and Herzegovina
Croatia and Bosnia and Herzegovina share the longest border (about 1,000 km). It winds inland and around the Neum coastal corridor that splits Croatia’s coast. Major crossings include Slavonski Brod and Metković; Neum is key for travel toward Dubrovnik.
Slovenia
Slovenia borders Croatia for roughly 670 km with busy crossings like Bregana/Obrežje and Dragonja. EU/Schengen differences make some checkpoints notable for travelers heading between Ljubljana and Zagreb, and coastal links connect both countries’ Adriatic tourism.
Hungary
Hungary and Croatia share about 348 km of mostly flat border. Major crossings include Goričan–Letenye on the A4/M7 corridor. The route is important for trade and travel between Zagreb and Budapest, with easy road and rail links.
Serbia
Serbia and Croatia share roughly 241 km of land border, with the main highway crossing at Bajakovo–Batrovci (A3/E70). The border region is a key freight corridor and has historical significance from the 1990s, affecting crossings and transit.
Montenegro
Montenegro has a short land border with Croatia of about 25 km near the Prevlaka area. The main crossing is Debeli Brijeg–Karasovići. The coastal scenery is notable and historical disputes over Prevlaka have largely been resolved for travelers.
Italy
Italy and Croatia do not touch by land but have an officially recognized maritime boundary in the Adriatic (approx. 1,000 km of adjacent sea). Busy ferry routes (Ancona–Split, Venice–Zadar) and shared fishing and tourism links connect the two countries.
