Arrianus may refer to: * Arrianus (bishop), bishop of Ionia, (c. 363-?) and an Anomoean * Arrianus (jurist), Roman jurisconsult * Arrianus (poet), Greek poet who made a Greek translation in hexameter verse of Virgil's ''Georgics'', possibly conflated with Adrianus (poet) *

Arrian Arrian of Nicomedia (; Greek: ''Arrianos''; la, Lucius Flavius Arrianus; ) was a Greek historian, public servant, military commander and philosopher of the Roman period. ''The Anabasis of Alexander'' by Arrian is considered the best ...

or (c. 86/89 - c. after 146/160), Greek historian, public servant, military commander and philosopher of the Roman period * Lucius Annius Arrianus, Roman consul 243 AD

See also