WIA

WIA may refer to:


 * Wounded in action
 * Winchelsea railway station, Victoria
 * Windows Image Acquisition, an image scanner API
 * Wireless Institute of Australia, The Wireless Institute of Australia, an amateur radio society
 * Workforce Investment Act of 1998, a US Federal Law
 * Wellington International Airport, New Zealand
 * Wattay International Airport, Laos
 * War in Afghanistan
 * Wentzville Ice Arena
 * Women in Animation
 * W.I.A. Wounded in Action, 1966 film