WOA

WOA may refer to:

Computing

 * Web-oriented architecture, a computer systems architectural style
 * Windows on ARM (disambiguation), a series of operating systems for ARM architecture computers
 * WebObjects application, the file system suffix of an application written using the WebObjects framework from NeXT, later Apple

Wars

 * War of Attrition, a conflict between Israel and Egypt
 * War of aggression

Music

 * Wacken Open Air, the largest exclusively metal music festival in the world
 * War of Ages, metalcore band from Pennsylvania
 * W.O.A Records of India and Dubai

Sports

 * World Olympians Association
 * Welsh Orienteering Association

Other uses

 * World Ocean Atlas
 * World of Art, a series of books on art
 * the ICAO airline designator for World Airways