DFS may refer to:
Brands and enterprises Dancer Fitzgerald Sample, advertising agency, now Saatchi & Saatchi DFS Furniture, a furniture retailer in the United Kingdom and Ireland DFS Group (Duty Free Shoppers), Hong Kong DFS Program Exchange, a former syndicator of TV programs Deutsche Flugsicherung, an air traffic control company
Organizations Department of Field Support, a UN department Department of Financial Services (disambiguation) Department of Financial Studies, University of Delhi, India Det frivillige Skyttervesen, the National Rifle Association of Norway Deutsche Flugsicherung, the German air traffic control organisation Deutsche Forschungsanstalt für Segelflug (German Research Institute for Sailplane Flight) Dirección Federal de Seguridad, Federal Direction of Security, Mexico New York State Department of Financial Services
Science and technology
Computing Depth-first search, an algorithm for traversing or searching tree or graph data structures Discrete Fourier series, the discrete version of Fourier series Dynamic frequency scaling, a method for reducing a microprocessor's power consumption Dynamic Frequency Selection, part of the IEEE 802.11h wireless standard
File systems Disc Filing System, a filesystem developed by Acorn Computers Distributed file system, a method of storing persistent data over computer network Distributed File System (Microsoft), distributed SMB file shares
Other uses in science and technology Cosworth DFS, a motor racing engine Decoherence-free subspaces, subspace of a system's Hilbert space where the system is decoupled from the environment
Demand Flexibility Service, a demand response system for electricity supplies in the United Kingdom DFS Kopernikus (Deutscher Fernmeldesatellit Kopernikus), a series of satellites Digital Frequency Synthesizer, generation of different frequency from another in phase Disease-free survival, a measure of the efficacy of medical treatment Double Fourier sphere method in mathematics and geosciences
Other uses Daily fantasy sports, a subset of fantasy sport games Dorian Finney-Smith, American basketball player Dumfriesshire, historic county in Scotland, Chapman code Dynamite Fighting Show, a Romanian-based kickboxing promotion company