Gratian (disambiguation)

Gratian can refer to:

• Felinus and Gratian (d. 250 AD), martyrs and saints
• Gratian the Elder, a 4th-century Roman soldier. Father of the emperors Valens and Valentinian and grandfather of:
  • Gratian the later fourth century Roman Emperor
• 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