9 May – Princess Elisabeth marries Franz, Duke of Hohenberg.
24 May – Representing Luxembourg, Michèle Arnaud appears in the Eurovision Song Contest 1958 with the song Ne crois pas. No rankings are stated except the winner: Lys Assia of Switzerland.
10 June – Charly Gaul wins the 1956 Giro d'Italia.
27 July - The Constitution of Luxembourg is amended to make the terms of all members of the Chamber of Deputies expire on the first Sunday of June 1959. As a result, all members would be elected at the same time, rather than in partial elections.
29 September - Entry into service of the electrified railway lines between Luxembourg City and Thionville, and Luxembourg City and Arlon.
25 October - The Constitution of Luxembourg is amended in two places to allow for the delegation of constitutional powers to international organisations, in preparation for the creation of the European Economic Community.
27 October - The Saar Treaty is signed in Luxembourg, allowing for the transfer of the Saarland to West Germany.
15 March – Marco Serafini, television director
22 March – Maria Teresa, Grand Duchess of Luxembourg
11 May - Claude Lenners, composer
13 August – Gast Waltzing, musician
30 August – Martine Mergen, politician
5 September – Marianne Majerus, photographer
13 September – Lucien Lux, politician
16 October – François Bausch, politician
17 November – Gaston Reinig, soldier and Chief of Defence
13 March – Albert Simon, illustrator
16 March – Pierre Braun, jurist and politician
23 March – Adolf Berens, writer
21 October – Joseph Laurent Philippe, bishop
11 December – Nicolas Braunshausen, politician
1956 in Luxembourg Wikipedia (Text) CC BY-SA
