Paul Horvat (Croatian: Pavao Horvat; Hungarian: Pál Horváti) was a Hungarian and Croatian nobleman and the 28th bishop of Zagreb. Paul was the brother of and John Horvat, and the nephew of John of Palisna. Paul, who succeeded Cardinal Demeter in 1379, was trusted by King Louis I of Hungary. The king died in 1382, while the bishop was on pilgrimage in Jerusalem. His elder surviving daughter, Queen Mary, was crowned his successor. Horváti joined the opposition to the underage Queen Mary and her mother, Louis' widow Elizabeth of Bosnia, who ruled in her name as regent. He invited King Charles III of Naples, Louis' closest agnate, to come to Hungary and claim the crown. Charles succeeded in assuming the Hungarian crown in late 1386, but Queen Elizabeth soon had him murdered.