Aru and ARU may refer to:
Arunachal Pradesh /ˌɑːrəˌnɑːtʃəl prəˈdɛʃ/ is one of the twenty-nine states of India. Located in northeast India, it holds the most north-eastern position among the states in the north-east region of India.
Suzanna Arundhati Roy (born 24 November 1961) is an Indian author. She is best known for her novel The God of Small Things (1997), which won the Man Booker Prize for Fiction in 1997. This novel became the biggest-selling book by a nonexpatriate Indian author.
Arup (officially Arup Group Limited) is a multinational professional services firm headquartered in London which provides engineering, design, planning, project management and consulting services for all aspects of the built environment.
Arundo donax, giant cane, is a tall perennial cane growing in damp soils, either fresh or moderately saline.
Arular is the debut studio album by English recording artist M.I.A.. It was released on 22 March 2005 in the United States, and one month later in the United Kingdom, with a slightly different track listing.
Arun Jaitley (born 28 December 1952) is an Indian politician and lawyer who is the current Finance Minister, Defence, Minister of Corporate Affairs in the Cabinet of India.