AIW

AIW may stand for:
 * International Union, Allied Industrial Workers of America
 * Advocates for Injured Workers, a Toronto-based legal clinic
 * Atlantic Intracoastal Waterway, an inland waterway in the United States
 * Alice in Wonderland, an 1865 novel with many adaptations
 * All-in-Wonder, a computer graphics card
 * Avengers: Infinity War, a 2018 superhero film by Marvel Studios
 * Ai-Ais Airport (IATA code AIW), in Ai-Ais, Namibia