Aro may refer to: Årø (Denmark), a small island in the Lillebælt in Denmark Aro (murderer) (died 1957), last person executed in Papua New Guinea Aro (surname) Aro (Twilight), a character in the Twilight saga by Stephenie Meyer Årø, Norway, a neighborhood of Molde Aro, Papua New Guinea, a village in Morobe Province Aro Confederacy, a precolonial Igbo trading oligarchy in West Africa Aro gTér, a lineage within Tibetan Buddhism Aro people, an Igbo subgroup in West Africa Aro River, a tributary of the Orinoco River in Venezuela Aro, a deity in Igbo mythology The abbreviation of aromantic, a lack of romantic orientation ARO may refer to: ARO (Auto Romania), a car company Algonquin Radio Observatory, a radio telescope research facility in Ontario, Canada Arctic Research Office, a division of the US NOAA Army Research Office, a department of the United States Army Research Laboratory Average rate option, a type of financial instrument Asset retirement obligation, a financial liability which provides for future disposal of assets Authentic Renewal Organization, a Venezuelan political party ARO (building), one of the tallest buildings in New York City Agricultural Research Organization, of the Israeli Ministry of Agriculture ARO, Inc. (short for Arnold Research Organization), an American defense contractor the former stock ticker symbol for Aéropostale stage name for actress/musician Aimee Osbourne The purchasing timeline After Receipt of Order Air Traffic Services (ATS) Reporting Office, for pre- and post-flight briefing by pilots at an aerodrome See also Aero (disambiguation) Årø (disambiguation) Aros (disambiguation)