IWA
# IWA

IWA may refer to:

## Organizations

### International

* 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
