Philip of Montfort, (d. March 17, 1270,Tyre) was Lord of La Ferté-Alais and Castres-en-Albigeois 1228–1270, Lord of Tyre 1246–1270, and Lord of Toron aft. 1240–1270. He was the son of Guy of Montfort and Helvis of Ibelin (daughter of Balian of Ibelin).
At his father's death at the siege of Vareilles in the Albigensian Crusade in 1228, he succeeded to his French seigneuries. His first wife was Eleonore de Courtenay (d. bef. 1230), daughter of Peter II of Courtenay. Philip joined the party of his uncle, John of Ibelin, against the representatives of Frederick II. In 1244, he was created Constable of Jerusalem, but was subordinate to Walter IV of Brienne at the Battle of La Forbie. Philip was one of the few Christian knights to escape the disaster there. In 1246, Henry I of Cyprus, then Regent of Jerusalem, created him Lord of Tyre as a reward for his services to the baronial party. While the legality of this grant was somewhat dubious, it was recognized by Hugh I c. 1269; but Hugh reserved the right to buy back the fief.