Most courses are taught in French, only two of them are in English. Knowledge in Spanish is appreciated in order to read the Inter-american court of Human rights' judgements.
It is possible to learn other languages at Paris 1 Panthéon-Sorbonne: students must then register through the Department of Languages (DDL). Numerous possibilities are offered to students, including the opportunity to learn so-called "rare" languages. Some students also choose to follow a high-level language course at Inalco in parallel, independently of their course. Their personal workload is high, and the requirements are high.