Pax is the Latin word for "peace" and the name of the Roman goddess of peace; the Pax Romana was the long era of calm under the early emperors. As a given name it is a 21st-century choice that got wide notice when Angelina Jolie and Brad Pitt named a son Pax in 2007. The name has stayed close to the top 2000 ever since, peaking at number 1967 in 2024 and ranking number 2074 in 2025.