Arrianus (Greek: Ἀρριανός) was historian of ancient Greece, who lived at, or shortly after, the time of Gaius Julius Verus Maximus, and wrote a history of emperor Maximinus Thrax and the Gordiani.

It is not improbable that he may be the same as Lucius Annius Arrianus, who is mentioned as consul in 243 CE.^[1]

References

 This article incorporates text from a publication now in the public domain: Schmitz, Leonhard (1870). "Arrianus (1)". In Smith, William (ed.). Dictionary of Greek and Roman Biography and Mythology. Vol. 1. p. 350.