Saint Joseph University of Beirut (Arabic: جامعة القديس يوسف في بيروت; French: Université Saint-Joseph de Beyrouth, commonly known as USJ) is a private Catholic research university in Beirut, Lebanon, founded in 1875 by French Jesuit missionaries and subsidized by the Government of France during the time when Lebanon was under Ottoman rule.
As the oldest French university in Lebanon, it promotes Lebanese culture and upholds a policy of equal admission opportunity without consideration of ethno-religious affiliations. It advocates trilingual education, offering instruction in Arabic, French, and English. It is known in Lebanon and the Middle East for its university hospital, the Hôtel-Dieu de France, and for its Faculty of Law, modern Lebanon's oldest law school and the first law school in Lebanon since the ancient Roman law school of Berytus.