Hungary–Romania border
divides the territories of Hungary and Romania
The Hungary–Romania border (Hungarian: Magyar–Román Államhatár; Romanian: Frontiera între Ungaria și România) refers to the state border between Hungary and Romania. It was established in 1920 by an international commission, the "Lord Commission", presided over by geographers including Emmanuel de Martonne and Robert Ficheux, and historians Robert William Seton-Watson and Ernest Denis. The border was set by the Treaty of Trianon which was signed on 4 June 1920.
The border has been stable since the end of the Second World War, when it received its current shape, and is no longer officially in dispute between the countries. In the current form, the border is about 448 kilometers long, or about 278 miles. It is demarcated by pillars, and about 20 kilometers of the border are marked by the Mureș River ("Maros" in Hungarian).
At the moment, the border is an internal border of the European Union, having once been an external border until Hungary's accession to the alliance on 1 May 2004. Romania followed suit, and became a member state of the European Union on 1 January 2007. Both countries later joined the Schengen Area (Hungary on 21 December 2007 and Romania on 1 January 2025), easing travel between the two.
History
Prior to World War I, the eastern and southern Carpathian Mountains formed a natural border between the Austro-Hungarian Empire and Romania.
The public source identifies “Hungary–Romania border” as divides the territories of Hungary and Romania. This brief keeps that definition visible, then builds a research path around Hungary, Romania and border.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Oct 4, 2025. The linked authority identifier is Q2452547. Authority coordinates are 46.117, 20.267. 2 of 4 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1920, 2004, 2007 and 2025.
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This entry incorporates text from “Hungary–Romania border” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.