13 February - Albert Rodesch is appointed to the Council of State, replacing John Castegnaro, who resigned in January.
11 March - President of the Council of State Marcel Sauber resigns to take up the vacancy left in the Chamber of Deputies by the death of Willy Bourg on 21 February.
29 April – Lydie Polfer meets with the foreign ministers of Belgium, France, and Germany, who agree a framework for the introduction of the planned Common Foreign and Security Policy.
29 April - Pierre Mores is appointed President of the Council of State, replacing Marcel Sauber.
20 May – Jean-Claude Juncker delivers his ninth State of the Nation address.
28 May - Ady Jung is appointed to the Council of State, replacing Marcel Sauber, who resigned in March.
31 May – CS Grevenmacher win the Luxembourg Cup, beating FC Etzella Ettelbruck 1-0 in the final.
1 June – Thomas Voeckler wins the 2003 Tour de Luxembourg, with Quick Step-Davitamon picking up the team title.
7 June – SES Americom launches its AMC-9 satellite: its first under SES ownership.
24 July – The eastern half of the A13 motorway (the collectrice du Sud), part of E29, is opened between Hellange and Schengen, including a 600-metre viaduct across the border to meet Germany's A8.
9 August – The 2003-04 season of the National Division kicks off.
12 August – The University of Luxembourg is founded.
22 August – Plans to extend France's LGV Est to Luxembourg City are formally approved by Luxembourg.
29 August – Skype is released.
10 October – The Luxembourgian Film Prizes are launched. The prize for Best Film is shared between J'ai toujours voulu etre une Sainte and L'homme au cigare.
13 October – Lydie Polfer, Dominique de Villepin, and Joschka Fischer inaugurate the Pierre Werner Institute in Luxembourg City.
November – Edward Steichen's The Family of Man exhibition, at Clervaux, is added to UNESCO's 'Memory of the World' register.
11 December – Kim Kirchen is named Luxembourg’s Sportsperson of the Year.
10 January – Paul Cerf, journalist
12 February - Ernest Arendt, Councillor of State
21 February – Willy Bourg, politician
20 March – Gordian Troeller, journalist
1 April – Marcel Ernzer, cyclist
4 July – Georges Margue, jurist and politician
9 November – Maurice Thoss, politician
23 November – Johny Lahure, politician
5 December – Fernand Koenig, singer
2003 in Luxembourg Wikipedia (Text) CC BY-SA
