Etymology
Joan Pau is a Catalan masculine compound given name, combining the names Joan 2 and Pau. Joan is the Catalan and Occitan form of John, which ultimately derives from the Hebrew name Yoḥanan, meaning "Yahweh is gracious." Pau is the Catalan form of Paul, which comes from the Latin Paulus, meaning "small" or "humble."
Notable Bearers
The name Joan Pau has been borne by several notable Catalans. Joan Pau Pujol (1570–1626) was a Catalan composer and organist of the Renaissance, known for his sacred music. More recently, Joan Pau Verdier (born 1947), is a Catalan singer, often associated with the Nova Cançó movement.
Related Forms
Joan Pau is analogous to other double names across European languages, such as Jean-Paul in French, John Paul in English, Juan Pablo in Spanish, and João Paulo in Portuguese. The name reflects the popularity of combining two prominent saints' names—John and Paul—both of whom are major figures in Christianity.
Sources: Wikipedia — Joan Pau