DFT may refer to:
Businesses and organisations
- Department for Transport, United Kingdom
- Digital Film Technology, maker of the Spirit DataCine film digitising scanner
- DuPont Fabros Technology, a US data center company (by NYSE ticker)
Science and mathematics
- Decision field theory, a human cognitive decision-making model
- Density functional theory, a computational quantum mechanical modelling method
- Discrete Fourier transform
Technology
- Deaereating feed tank
- Demand flow technology
- Design for testing (design for testability)
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