← 1976 1975 1974 1977 in Luxembourg → 1978 1979 1980
Decades:	1950s 1960s 1970s 1980s 1990s
See also:	History of Luxembourg List of years in Luxembourg

The following lists events that happened during 1977 in the Grand Duchy of Luxembourg.

• 18 January – Lucien Kraus is appointed to the Council of State.^[2]

• 3 April – Luxembourg adopts Central European Summer Time regularly for the first time.
• 7 May – Representing Luxembourg, Anne-Marie Besse finishes sixteenth in the Eurovision Song Contest 1977 with the song Frère Jacques.
• 3 June – The Sidor waste-to-energy incinerator at Leudelange is inaugurated.
• 12 June – The Netherlands' Bert Pronk wins the 1977 Tour de Luxembourg.
• 22 June – The government abandons plan to build a nuclear power plant at Remerschen, due to fears that the country wouldn't have enough police to protect the site from protestors.^[3]

• 29 July – Cornel Meder is appointed to the Council of State.^[2]
• 2 August – A law creating the Société nationale de Crédit et d'Investissement is passed.^[4]
• 16 September – Marcel Mart leaves the government to join the European Court of Auditors, and is replaced by Josy Barthel.^[5]

• At the conference of the International Telecommunication Union, in Geneva, Luxembourg is assigned five frequencies for satellite broadcasting, furthering the government's move towards making Luxembourg a leader in satellite telecommunications.^[6]
• Jeunesse Esch wins the 1976-77 National Division title.

• 20 August – Stéphane Gillet, footballer
• 5 November – Christian Poos, cyclist
• 25 November - Max Jacoby, filmmaker

• 26 July – Prince Charles of Luxembourg (1927–1977)^[2]

• Thewes, Guy (2006). Les gouvernements du Grand-Duché de Luxembourg depuis 1848 (PDF) (in French) (2006 ed.). Luxembourg City: Service Information et Presse. ISBN 978-2-87999-156-6. Retrieved 12 December 2009.