The Constantinian Dynasty was a dynasty in the Dominate, the first after the Tetrarchy. It is named for Constantine the Great, its most famous member, and it is sometimes called "Neo-Flavian" due to the fact that each emperor in this dynasty bore the name "Flavius," like the members of the Flavian Dynasty of the Principate. The members of the Constantinian dynasty are below:

Constantine I (306 AD -- 337 AD)
Constantine II (337 AD -- 340 AD)
Constantius II (337 AD -- 361 AD)
Constans I (337 AD -- 350 AD)
Magnentius (350 AD -- 353 AD) (Usurper)
Julian (355 AD -- 363 AD)