The Lycée de garçons Luxembourg (English: Luxembourg Boys' High School) is a high school in Luxembourg City, in southern Luxembourg. The Lycée is located in the Limpertsbergquarter, in the north-west of the city and is currently considered to be the top secondary institution in Luxembourg.
The school was founded under the name 'École industrielle et commerciale' as an annex to the Athénée de Luxembourg, Luxembourg's oldest school, in 1892. In 1908, the school moved to its current site, in Limpertsberg, when a new school was constructed there for 560,000 francs. The school was renamed to its current title on 28 April 1945.