FSD may refer to:
Places Faisalabad, Pakistan Sioux Falls Regional Airport, South Dakota, United States (IATA code: FSD)
Education Ferndale School District, Washington Florida School for the Deaf, St. Augustine, Florida Framwellgate School Durham, England Frankenmuth School District, Michigan Fremont School District (disambiguation) French School of Detroit, Michigan Filer School District, Idaho; see Filer High School Fellowship in Sports dentistry; see Indian Dental Association
Organizations Florida State Department, the state department for Florida, United States Foundation for Sustainable Development Freedom Service Dogs, an American animal rescue Hong Kong Fire Services Department Swiss Foundation for Mine Action ()
Science and technology Computing Full Self-Driving, an advanced driver-assistance system from Tesla, Inc. File system driver Free Software Directory The Free Software Definition Functional specifications document
Other uses in science and technology Female sexual dysfunction Fourteen-segment display Flame supervision device Full-stack developer Free Shipping Day Full scale deflection, the maximum amount the pointer of an analog meter can be deflected
Other uses Dirección Federal de Seguridad or the Federal Security Directorate Fox Sports Detroit, an American regional sports network Free Software Daily, a former website about free software Forensic Science Division or Forensic Science Department , a Polish auto manufacturer, in business 1952–2003