9 January – The Luxembourg Airlines Company is founded.
29 January – The first conference of Benelux foreign ministers is held, in Luxembourg City.
2 February – Luxembourg Airlines Company makes its first flight, from Luxembourg – Findel to Paris – Le Bourget.
17 March – Luxembourg signs the Treaty of Brussels.
3 April – The Obermosel-Zeitung and l'Unio'n cease publication and are merged into the new Lëtzebuerger Journal.
5 April – The Lëtzebuerger Journal begins publication.
6 June – Partial elections are held to the Chamber of Deputies, resulting in gains for the Luxembourg Socialist Workers' Party at the expense of the Christian Social People's Party
14 July – In the aftermath of the previous month's election, the government is reshuffled, with Nicolas Margue and Lambert Schaus replaced by Pierre Frieden and Aloyse Hentgen.
26 July – At the 1948 Summer Olympics, the Luxembourg national football team records its largest-ever victory, beating Afghanistan 6-0.
29 July – The 1948 Summer Olympics proper begin, with 45 competitors from Luxembourg. None wins a medal.
4 August – Émile Raus, Lambert Schaus, and André Origer are appointed to the Council of State, replacing Michel Rasquin and Pierre Frieden.
30 January – Aly Jaerling, politician
23 February – Raymond Weydert, politician
7 May – Marc Agosta, athlete
19 November – Robert Biever, member of the Council of State
24 September – Auguste Thorn, politician
8 November – Jean-Pierre Muller, cyclist
1948 in Luxembourg Wikipedia (Text) CC BY-SA
