Aro

Aro may refer to:

People

 * Aro (surname)
 * Aro people, an Igbo subgroup in West Africa
 * Aro (murderer) (died 1957), last person executed in Papua New Guinea
 * Aro (Twilight), a character in the Twilight saga by Stephenie Meyer
 * Aro, a deity in Igbo mythology
 * ARO, stage name for actress/musician Aimee Osbourne

Places

 * Årø (Denmark), a small island in the Lillebælt in Denmark
 * Årø, Norway, a neighborhood of Molde
 * Aro, Papua New Guinea, a village in Morobe Province
 * Aro River, a tributary of the Orinoco River in Venezuela

Other

 * ARO (Auto Romania), a car company
 * ARO (building), one of the tallest buildings in New York City
 * Aro Confederacy, a precolonial Igbo trading oligarchy in West Africa
 * Aro gTér, a lineage within Tibetan Buddhism
 * Abbreviation of aromantic, a lack of romantic orientation
 * 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
 * Agricultural Research Organization, of the Israeli Ministry of Agriculture
 * the former stock ticker symbol for Aéropostale
 * Azure Red Hat OpenShift, a computer server type runtime platform for cloud based software projects
 * The Aari language, an Omotic language of Ethiopia