AIW
AIW may stand for:
- International Union, Allied Industrial Workers of America
- Advocates for Injured Workers, a Toronto-based legal clinic
- American Iron Works, a commercial steel design and fabrication company in Washington, DC.
- 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