Buy
Buy may refer to:
- BUY (Burlington-Alamance Regional Airport), Burlington, North Carolina
- Buy.com, a shopping website
- Buy (album), a 1979 album by James White and the Contortions
- Buy River, a river in Perm Krai and the republics of Bashkortostan and Udmurtia in Russia
- Buy (town), a town in Kostroma Oblast, Russia
- Trade, voluntary exchange of goods, services, or both
- Purchase acquire by means of a financial transaction