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 nine languages: French – Luxembourgish – English – German – Spanish – Italian – Portuguese – Chinese – Dutch.

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  – Dutch – English – French – German – Italian – Luxembourgish – Portuguese – Spanish;
  • Mersch: English – French – German – Luxembourgish;
  • Belval: English – French –  German – Luxembourgish – Spanish.


06/10 Fermeture exceptionnelle : Guichets d’accueil et médiathèques

Le jeudi 6 octobre, les guichets d’accueil des 3 sites (Glacis, Belval et Mersch) ainsi que la médiathèque de l’INL Glacis seront exceptionnellement fermés au public à partir de 13h30. La médiathèque de l’INL Belval sera fermée à partir de 12h30. Merci de votre compréhension.

29/09 Fermeture exceptionnelle : Médiathèque INL-Belval

La médiathèque INL-Belval est exceptionnellement fermée ce jeudi 29 septembre 2022. Merci de votre compréhension.

26/09 European Day of Languages

Happy European Day of Languages ! To celebrate this occasion, take part in our quiz and test your knowledge of European languages! Click on one of the links to participate. Luxembourgish: French: German: English: Spanish: Italian: Portuguese: Chinese: Dutch: You can take the quiz until 9th October. […]

NOUVEAU : Cours de portugais à l’INL Belval

À partir de septembre, des cours de portugais sont également disponibles à l’INL Belval.

Lancement du LLO, la nouvelle plateforme d’apprentissage de la langue luxembourgeoise

Lors de la conférence de presse du 9 septembre 2022, Monsieur Claude Meisch, ministre de l’Éducation nationale, de l’Enfance et de la Jeunesse et Madame Maisy Gorza, directrice de l’Institut national des langues ont présenté la nouvelle plateforme d’apprentissage pour apprendre la langue luxembourgeoise, désormais accessible gratuitement en ligne. Adapté aux besoins du marché de […]

Orientation days: 15th, 16th & 19th September 2022

Our orientation days for the autumn semester will take place on 15th, 16th  and 19th September 2022. Appointments can be made via MyINL.   If you have not taken a language course at INL this semester or the previous one: 1. Create an account via 2. Go to ‘My levels’. 3. Choose a language […]

Enrolment dates for the autumn semester 2022

You have attended courses at INL in the spring semester 2022: Online re-enrolment via MyINL is possible from 9 September 2022 (08:00 a.m.) You have not attended courses at INL in the spring semester 2022: Online enrolment via MyINL is possible from 12 September 2022 (08:00 a.m.) You don’t have a recommended level yet: Follow the procedure on MyINL  


Le guichet d’accueil INL-Belval sera exceptionnellement ouvert ce lundi 05 septembre 2022 de 8h00 à 12h30 et de 13h30 à 17h00. Merci de votre compréhension.