IWA

IWA may refer to:

Organizations

International

• Institute of World Affairs
• International Water Association
• International Webmasters Association
• International Woodworkers of America, United States and Canada
• International Workers Association, an anarcho-syndicalist federation of labour unions
• International Workingmen's Association (1864–1876), also known as the First International

United Kingdom

• Indian Workers' Association
• Inland Waterways Association, a canal charity
• Institute of Welsh Affairs, a policy think-tank

Elsewhere

• Independent Wrestling Association Mid-South, United States
• International Wrestling Alliance, Canada
• International Wrestling Association (disambiguation), various national bodies
• Irish Wheelchair Association, Ireland

Places

• Iwa, Nepal, a defunct municipality (village development committee)
• Phoenix-Mesa Gateway Airport, Mesa, Arizona, US (FAA code: IWA)

Other uses

• Great frigatebird (Hawaiian: 'iwa), an avian species
  • Hurricane Iwa, a late-1982 storm on the Hawaiian Islands
• IWA OutdoorClassics, an arms trade show held annually in Nuremberg, Germany
• Integrated Windows Authentication, Microsoft term for a set of protocols
• International Workshop Agreement, a stage of ISO's standardization process