Arnouphis or Harnouphis was an Egyptian  who, according to Dio Cassius, saved the Roman legion XII Fulminata during a campaign against the Quadi in about AD 172 by calling up a rainstorm.
A certain Arnouphis or Harnouphis, an Egyptian, is credited by Dio Cassius with rescuing the Roman legion XII Fulminata during a military operation against the Quadi around AD 172 by conjuring up a tempest.