| Belgium–Luxembourg relations | |
| Party1: | Belgium |
| Party2: | Luxembourg |
| Map: | Belgium Luxembourg Locator.svg |
| Mission1: | Embassy of Belgium, Luxembourg |
| Mission2: | Embassy of Luxembourg, Brussels |
| Envoy1: | Thomas Lambert |
| Envoy2: | Arlette Conzemius |
Belgium–Luxembourg (French: Relations Belgo-Luxembourgeoises; German: Beziehungen zwischen Belgien und Luxemburg) relations are the bilateral relations between the Kingdom of Belgium and Grand Duchy of Luxembourg.
Both countries have a history of close cooperation, notably within the Belgium–Luxembourg Economic Union, Benelux and within the European Union.
Belgium has an embassy in Luxembourg and Luxembourg has an embassy in Brussels., the Belgian ambassador to Luxembourg is Thomas Lambert.[1], the Luxembourger ambassador to Belgium is Arlette Conzemius.[2]
Belgium and Luxembourg share a land border. The Belgian side of the border is mostly Luxembourg Province, with a small part of the German-speaking municipality of Burg-Reuland in Liège Province also bordering the Grand Duchy.
From 12 November 1964 to 7 October 2000, the Grand Duchess consort of Luxembourg was Josephine-Charlotte, born a Princess of Belgium and wife of Grand Duke Jean of Luxembourg.