1 January – The Euro is launched, replacing the Luxembourgian franc. Franc currency is still used in circulation, but at a fixed exchange rate of 40.3399 to 1 Euro.
15 March – The Santer Commission, under the leadership of Luxembourger Jacques Santer, resigns in the face of corruption allegations.
29 April – Jean-Claude Juncker delivers his fifth State of the Nation address.
13 May – Jeunesse Esch win the Luxembourg Cup, beating FC Mondercange 3-0 in the final.
13 June – Legislative and European elections are held. The LSAP lose four seats in the Chamber of Deputies, with the DP and ADR picking up five between them.
13 June – Belgium's Marc Wauters wins the 1999 Tour de Luxembourg.
16 June – SES launches its ninth satellite, Astra 1H.
7 August – Jean-Claude Juncker forms a new government, with Lydie Polfer as his deputy.
11 August – A total solar eclipse is visible in Luxembourg.
10 October – Communal elections are held.
24 December – Grand Duke Jean announces that he is to abdicate in favour of his eldest son, Hereditary Grand Duke Henri. No date is yet given.
11 February – Maggy Stein, sculptor
22 October - Laure Koster, musician and Olympian
1999 in Luxembourg Wikipedia (Text) CC BY-SA