2025 in Luxembourg

• Monarch: Henri (until 3 October); Guillaume V (from 3 October)
• Prime Minister: Luc Frieden
• Deputy Prime Minister: Xavier Bettel
• President of the Chamber of Deputies: Claude Wiseler
• President of the Council of State: Marc Thewes
• Mayor of Luxembourg City: Lydie Polfer

• 25 February – The Illuccix prostate cancer imaging agent is approved in Luxembourg.^[1]
• 25 March – Post Luxembourg becomes the first European operator to migrate to an autonomous, AI-ready fiber network.^[2]
• 29 March – A worker in a Goodyear factory in Colmar-Berg is killed in a workplace accident.^[3]
• June - Fernand Kartheiser, MEP for the Alternative Democratic Reform Party (ADR) is expelled from the European Conservatives and Reformists Group, because he visited Russia.^[4][5][6]
• 22 September – Luxembourg formally recognizes the State of Palestine.^[7]
• 3 October – Henri, Grand Duke of Luxembourg abdicates and his eldest son Guillaume accedes to the throne.^[8]
• 11 December - Georges Mischo resigns as Minister for Labour and Sports amidst controversy surrounding his relationship with trade unions, and is replaced by Marc Spautz and Martine Hansen.^[9]

Source:^[10][11]

• 1 January – New Year's Day
• 21 April – Easter Monday
• 1 May – International Workers' Day
• 9 May – Europe Day
• 29 May – Ascension Day
• 9 June – Whit Monday
• 23 June – National Day
• 15 August – Assumption Day
• 1 November – All Saints' Day
• 25 December – Christmas Day
• 26 December – Saint Stephen's Day

• 14 January - Michel Medinger, 83, photographer and Olympic middle-distance runner (1964).^[12]
• 26 February - Pierre Joris, 78, Luxembourgish-American poet and writer.^[13]
• 1 March – Prince Frederik, 22, son of Prince Robert^[14]
• 23 March - Marcel Glesener, 87, politician and trade unionist, deputy (1989–2004).^[15]
• 17 June - Léon Krier, 79, architect.^[16]
• 19 August - Alain Anen, 75, Olympic fencer (1972).^[17]