The Grand Duchy of Luxembourg is a small State in the heart of Europe; it is home to both Luxembourgers who routinely use the three languages Luxembourgish, French and German, and many foreign residents; there is also a large number of cross-border workers. The complexity and the uniqueness of the situation in terms of language resulted, in 1991, in the creation of the ‘Centre de Langues Luxembourg’ (CLL); legislation passed on 22 May 2009 turned this into the ‘Institut National des Langues’ (INL). The INL is a public administration under the authority of the Minister for Education, Children and Youth.

Our missions

As a centre for language learning, the INL:

  • provides language courses for adults in order to:
    • promote plurilingualism,
    • encourage integration and social cohesion,
    • improve employability;
  • promotes intercultural exchange through use of the languages taught;
  • offers adult literacy courses.

As an examination and certification centre, the INL:

  • certifies knowledge of the Luxembourgish language in respect of official diplomas and certificates in the Luxembourgish language;
  • organises international tests and examinations in foreign languages.

Language teaching

The INL offers classes for adults in eight languages: French – Luxembourgish – English – German – Spanish – Italian – Portuguese – Chinese.

The courses offered comprise:

  • general language courses for beginners and for the more advanced;
  • courses with a specific objective (e.g. business German, business English, German for lawyers, Italian in the Media);
  • training for teachers of Luxembourgish (‘Zertifikat Lëtzebuerger Sprooch a Kultur’ – ZLSK).

In 2014, the INL accepted more than 12,000 registrations from people from 130 different nationalities, and offered more than 55,000 hours of classes.

Language certification

The INL administers international language tests and examinations in conjunction with the Goethe-Institut, Cambridge University, theInstituto Cervantes, the Centre international d’études pédagogiques, theUniversità per Stranieri, Perugia and the Universidade de Lisboa.

  • German– Goethe Zertifikat – Test Deutsch als Fremdsprache;
  • English – Cambridge English Language Assessment – International English Language Testing System;
  • Spanish – Diplomas de Español como lengua extranjera;
  • French – Diplôme élémentaire/approfondi de la langue française – Test de Connaissance du Français;
  • Italian – Diploma della Lingua Italiana;
  • Portuguese – Diploma de Português Língua Estrangeira.

The INL is the national certification centre for official diplomas and certificats in the Luxembourguish language :

  • « Lëtzebuergesch als Friemsprooch »;
  • « Sproochentest Lëtzebuergesch » which must be passed by applicants for Luxembourgish nationality;
  • «  Zertifikat Lëtzebuerger Sprooch a Kultur” – ZLSK.

Our teaching staff

The INL team comprises more than 120 teachers who specialise in teaching foreign languages to adults: teachers – native-speaker teaching assistants – adult trainers – trainees.

Our locations

The INL currently offers courses in:

  • Luxembourg – Glacis: Chinese  – English – French – German – Italian – Luxembourgish – Portuguese – Spanish;
  • Mersch: English – French – German – Luxembourgish;
  • Belval: English – French –  German – Luxembourgish – Spanish.


4/12 – Fermeture exceptionnelle guichet d’accueil Mersch

Le guichet d’accueil et d’information de l’INL Mersch est exceptionnellement ouvert le mercredi, 04/12/2019 de 08h00 à 12h15 et de 13h45 à 15h30.

9/12 – Fermeture exceptionnelle guichet d’accueil INL Mersch

Le guichet d’accueil et d’information de l’INL Mersch est exceptionnellement ouvert le lundi, 09/12/2019 de 08h00 à 12h15 et de 13h45 à 15h30.

New enrolments – spring semester 2020

You are not yet a student at the INL and you would like to enrol in a course for the spring semester 2020: Create now an enrolment file via MyINL. We offer appointments for language evaluation interviews throughout the semester. The spring semester 2020 starts on 25 February 2020. Further information regarding the enrolment procedure:…/informations-pour-les-nouvelles-inscr…/

EXAMEN L.A.F. Dezember 13 am INL

Niveauen: A2 B2 C1 Moies gi fir d’Niveauen A2 a B2 d’Examen an de Kompetenzen (HV, LV, SA)* gepréift. Fir den C1 (LV an SA)   Am Nomëtteg sinn déi mëndlech Examen (MA)*. Fir den C1 gëtt d’Héierverstoe mam Mëndleche getest (HV+MA).   Schéckt Ären Umeldungsformulaire op Meldeschluss ass den 13. November.   Méi […]

Heures d’ouverture – Congé de la Toussaint (26/10/19-03/11/19)

  INL – Glacis 28/10 – 29/10 08:00 – 12:00 30/10 – 01/11 Fermé au public   INL-Belval 28/10 – 01/11 Fermé au public   INL-Mersch 28/10 – 01/11 Fermé au public

Literaresch Table ronde den 23.10.2019 um 19.00 Auer

 Den Institut national des langues (INL) organiséiert den 23. Oktober 2019 um 19.00 Auer am Kader vu sengem 10. Anniversaire eng literaresch Table ronde mat 4 Gewënner vum Servais-Präis: Roland HARSCH (2001: Laub und Nadel) Nico HELMINGER (2014: Abrasch / 2018: Kuerz Chronik vum Menn Malkowitsch sengen Deeg an der Loge) Roland MEYER (2015: Roughmix) […]