Gratian (disambiguation)

Gratian can refer to:

• Felinus and Gratian (d. 250 AD), Christian martyrs and saints
• Gratianus Funarius, Roman soldier, father of emperors Valentinian I and Valens
• Gratian, Roman emperor from 367 to 383
• Gratian, a 5th-century Romano-British usurper and emperor
• Pope Gregory VI (died 1047), whose name was John Gratian before he assumed the papacy
• the author of the 12th-century Decretum Gratiani
• Gratian of Tours (Gatian), bishop of Tours