Rhosus may refer to:

Places and jurisdictions

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  • Arsuz (Arsûs), formerly known as Rhosus, a coastal town in Hatay Province, Asian Turkey,
    • the former Diocese of Rhosus, with see in the above city in Cilicia Secunda, now a Latin Catholic titular see
  • a place on the Pierian coast in Macedonia

Other uses

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  • MV Rhosus (1986), a Moldovan-flagged cargo ship whose abandoned ammonium nitrate cargo fueled the 2020 Beirut explosions
  • Rhosus (moth), a moth genus