H.E. Mr. Olivier Maes took up the position of Ambassador and Permanent Representative of Luxembourg to the United Nations in New York on 15 July 2021. During his tenure, Ambassador Maes has been appointed three times as co-facilitator by the President of the United Nations General Assembly. With the Permanent Representative of Bangladesh, he co-facilitated the Progress Declaration of the first International Migration Review Forum held in May 2022 to assess the implementation of the Global Compact for Safe, Orderly and Regular Migration. The next year, Ambassador Maes co-facilitated with the Permanent Representative of South Africa the preparation of the High-level Dialogue on Financing for Development held in September 2023. In 2024-2025, Ambassador Maes serves with the Permanent Representative of Saint Vincent and the Grenadines as co-facilitator for the preparation of the fourth high-level meeting of the General Assembly on the prevention and control of noncommunicable diseases and the promotion of mental health and well-being to be held on 25 September 2025.
During his tenure, Luxembourg was elected for the first time as a member of the UN Human Rights Council, for the term 2022-2024, at the election held in the General Assembly on 14 October 2021. In the field of human rights, Luxembourg took an initiative that led to the adoption on 29 June 2023 of resolution 77/301, by which the General Assembly decided to establish, under the auspices of the UN, the Independent Institution on Missing Persons in the Syrian Arab Republic, to clarify the fate and whereabouts of all missing persons in the Syrian Arab Republic and to provide adequate support to victims, survivors and the families of those missing.
Before his appointment as Permanent Representative to the UN, Mr. Maes served as Ambassador, Director for Political Affairs at the Ministry of Foreign and European Affairs of Luxembourg for almost four years, starting on 1 September 2017.
He was Deputy Permanent Representative of Luxembourg to the United Nations in New York from 27 August 2010 to 31 August 2017, a period that included Luxembourg’s first ever term as an elected member of the Security Council, in 2013-2014.
Before moving to New York for his first assignment at the UN, Mr. Maes served as Deputy Director for Development Cooperation and Humanitarian Affairs in the Ministry of Foreign Affairs from November 2007 to August 2010. It is during that period that the official development assistance (ODA) provided by Luxembourg reached 1% of its gross national income.
For four years, between 2003 and 2007, Mr. Maes was posted in Brussels, where he served as the Deputy Representative of Luxembourg to the Political and Security Committee of the European Union from 15 August 2006 to 31 October 2007, after serving as Politico-Military Counsellor from 1 September 2003 to 14 August 2006 and Chair of the Politico-Military Group of the European Union during Luxembourg’s Presidency of the Council of the EU in the first semester of 2005.
From 6 April 1999 to 31 August 2003, Mr. Maes worked as Attaché, Second Secretary and then First Secretary in charge of the management of Luxembourg’s ODA and cooperation with non-governmental organizations in the Directorate for Development Cooperation and Humanitarian Affairs in the Ministry of Foreign Affairs in Luxembourg.
Mr. Maes received a post-graduate diploma from the Institut d’Études Politiques de Paris (Sciences Po) in France in 1998, where he undertook a comparative study of democratic transitions in post-communist Europe. This followed two diplomas in political and social sciences he obtained from Sciences Po Paris and from the Freie Universität Berlin in Germany in 1996 and 1997.
Born on 23 January 1974 in Nancy, France, Mr. Maes is married to a United Nations staff interpreter and they have two children.