Bastian is a rare male given name of Latin origin, derived from Constantius, meaning 'constant' or 'steadfast'. It has been used since the 4th century by Roman emperors and saints, with its earliest known use attributed to Emperor Constantius II. In German-speaking countries, Bastian serves as a short form of Konstantin, while in France it is spelled Bastien and associated with Saint Bastien. Despite its rarity, Bastian's Latin origin and distinctive spelling make it an appealing choice for parents seeking unique and meaningful names.