1940 in Belgium

Incumbents

• Monarch: Leopold III
• Prime Minister: Hubert Pierlot

  Events

• 10 January – Mechelen incident
• 10 to 28 May – Battle of Belgium
• * 10 to 11 May – Battle of Fort Eben-Emael
• * 12 to 14 May – Battle of Hannut
• * 14 to 15 May – Battle of Gembloux
• * 22 May – Alexander von Falkenhausen appointed to the head of the Military Administration in Belgium and Northern France
• * 23 to 28 May – Battle of the Lys
• * 25 May – Vinkt Massacre
• * 28 May – Leopold III surrenders, contrary to ministerial advice
• 28 June – Belgian Labour Party dissolved
• 22 October – Belgian government in exile, having been dispersed in France, Spain and Switzerland, regroups in London

  Births

• 2 January – Florent Bessemans, fencer
• 4 January – Léon Semmeling, footballer
• 5 February – Henri Van Herwegen, artist
• 23 February – Remi Vermeiren, banker
• 24 May – Hilde Houben-Bertrand, politician
• 6 June – Nicolas Dumont, Olympic athlete
• 7 July – Irène Sweyd, Olympic athlete
• 7 August – Jean-Luc Dehaene, Prime Minister 1992-1999
• 12 October – Yvan Covent, cyclist
• 27 December – William Cliff, poet

  Deaths

• 10 January – Pierre Imperiali, politician
• 27 January – Léon Frédéric, painter
• 30 January – André Léon Tonnoir, entomologist
• 10 February – Paulin Ladeuze, theologian
• 11 February – Joseph Henri Honoré Boex, author
• 22 February – Eugène Laermans, painter
• 14 March – Flori van Acker, painter
• 19 March – Gustave Sap, politician
• 29 April – Jules Feller, academician
• 12 May – Michel D'Hooghe, cyclist
• 20 May – Joris Van Severen, far-right politician
• 18 June – Robert Feyerick, Olympic athlete
• 24 June – Frédéric-Vincent Lebbe, missionary
• 29 August – Arthur De Greef, composer
• 5 September – Charles de Broqueville, former Prime Minister
• 9 September – Albert du Roy de Blicquy, general
• 23 September – Marcel Van Crombrugge, Olympic athlete
• 7 October – Marie de Bièvre, painter
• 17 October – Lucien Linden, botanist
• 3 November – Julien Vervaecke, cyclist
• 8 November – Arthur Vierendeel, civil engineer
• 16 November – Léon Dens, politician