| Belgian Military Organisation of Resistance OMBR | |
| Native Name: | Organisation Militaire Belge de Résistance |
| Native Name Lang: | ISO 639-1 |
| War: | the Belgian Resistance (World War II) |
| Active: | 1940–1944 |
| Area: | Belgium |
| Size: | 3,112 (total) |
The Belgian Military Organisation of Resistance (French: Organisation Militaire Belge de Résistance) or OMBR was a group within the Belgian resistance in German-occupied Belgium during World War II. It remained a reasonably small organisation throughout the war, comprising a total of 3,112 men and women.[1] The acronym of the group was deliberately chosen as a homophone of the French word ombre meaning "shadow".
Founded in 1940, the group only adopted the acronym OMBR in July 1942.[2] The group's motto was "Better to die than to betray"[3] and its vow "I swear to be faithful to the country, to observe the laws and constitution of the Belgian people, to obey my superiors and never to betray."[4]