FWS may refer to:
- Federal Wage System, a program of the United States Office of Personnel Management
- Federal Work-Study Program, of the United States Department of Education
- United States Fish and Wildlife Service, an agency of the United States Department of the Interior
- Frank-Walter Steinmeier, currently serving as the 12th Federal President of Germany
- Festival Welfare Services, in the United Kingdom
- Fetal warfarin syndrome
- Fort Worth Spinks Airport, in Texas, United States
- United States Air Force Fighter Weapons School, now the United States Air Force Weapons School
- United States Navy Fighter Weapons School, now the United States Navy Strike Fighter Tactics Instructor program
- Vienna Airport railway station, in Austria
| This disambiguation page lists articles associated with the title FWS.
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