Luxembourg has three official languages: French, German, and Luxembourgish. However, the language you need depends on your job. Many companies, especially international ones, use English as their working language. Jobs in IT, finance, engineering, and research often require English only. Public-facing roles may require French or German. Some government jobs require Luxembourgish. Even if not required, learning basic French helps with daily life and communication. Many international workers manage well with English, but having additional language skills improves job opportunities.