FSD may refer to: Places Faisalabad, Pakistan Sioux Falls Regional Airport, in South Dakota, US (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 - Indian Dental Association Organizations Florida State, Department, the state department for Florida, USA 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 File system driver Free Software Directory The Free Software Definition Full Self-Driving, an advanced driver-assistance system from Tesla, Inc. Functional specifications document Other uses in science and technology Female sexual dysfunction Fourteen-segment display Flame supervision device Full scale deflection, the maximum amount the pointer of an analog meter can be deflected Free Shipping Day Other uses Dirección Federal de Seguridad, or, in English, the Federal Security Directorate Fox Sports Detroit Free Software Daily, a website Forensic Science Division, or Forensic Science Department , a Polish auto manufacturer, in business 1952–2003