FDA may refer to:

• Food and Drug Administration (United States), an agency of the United States Department of Health and Human Services responsible for the control and safety of food and drugs
• Food and Drug Administration (Thailand), an agency responsible for the control and safety of foods and drugs in Thailand
• FDA (trade union), a British trade union for senior civil servants (formerly Association of First Division Civil Servants)
• Flag Desecration Amendment, a proposed amendment to the United States Constitution
• Florida Dental Association, USA
• Fórum Democrático Angolano, a translation of the Angolan Democratic Forum, an Angolan former political party
• Foundation Degree, a UK higher qualification.
• Front Deutscher Äpfel, a German parody movement
• Functional data analysis
• ICAO airline code for Fuji Dream Airlines, a commercial airline company started operation from June 4, 2009, based in Shizuoka Airport, Japan.
• Field Data Acquisition, a device used to gather data from remote devices in the Control Systems discipline
• Fluorescein diacetate, a non-fluorescent lipid permeable fluorescein derivative (carboxy groups masked by OAc, which are removed by deacetylases in cells) used in cell biology, including viability tests.

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