ARU

'Aru' can refer to:

★ Aru Islands, a group of 95 islands in the Moluccas, Indonesia

★ Aru, Sumatra, Indonesia, a bay in northeast Sumatra, a former polity (Aru/Karo)

★ Aru, Democratic Republic of Congo

★ Alpha Rho Upsilon fraternity

★ American Railway Union

★ Anglia Ruskin University

★ Aquarium Rescue Unit, an American jam band.

★ Army Rugby Union

★ The National Rail code for Arundel railway station, United Kingdom.

★ Australian Rugby Union

★ Automated Response Unit