IWG
# IWG

IWG may refer to:

* Inch of Water Gauge, pressure unit corresponding to 2.54 $cmH_2O$ or approximately 249 Pa
* "I Wanna Go", song by Britney Spears
* Interagency Working Group such as the
   * Nazi War Crimes and Japanese Imperial Government Records Interagency Working Group
   * Interagency Working Group on Youth Programs
* IWG plc, a global provider of office space
* Irish Workers' Group
