- FAADC2 (Forward Area Air Defense Command and Control)
- FAADC2I (Forward Area Air Defense Command, Control, and Intelligence)
- FAADC3I (Forward Area Air Defense Command, Control, Communications, and Intelligence)
- FAADEZ (Forward Area Air Defence Engagement Zone)
- FAAD GBS (Forward Area Air Defense Ground Based Sensor)
- FAADS (Forward Area Air Defense System)
- FAAFP (Fellow of the American Academy of Family Physicians)
- FAAIM (Foundation for Asian American Independent Media)
- FAAN (Fellow of the American Academy of Neurology)
- FAAO (Federal Aviation Administration Order)
- FAAP (Fundação Armando Alvares Penteado)
- FAAPS (Field Artillery Ammunition Processing System)
- FAAQ (Frequently Asked and Anticipated Questions (cf. FAQ))
- FAAR (Forward Area Alerting Radar (US))
- FAARP (Forward Area Arming & Refueling Point)
- FAAS (Federation Of American Aquarium Societies)
- FAASV (Field Artillery Ammunition Support Vehicle (US))
- FAAV (Future Attack Air Vehicle)
- FAB (Feline Advisory Bureau (UK feline charity))
- FABERHAUS INK (Online Blog, Published, Circulated brochure Re/Amateur Radio, Varied Interests by Author, Poet, f.m. Faber)
- FABI (Fellow of the American Biographical Institute)
- FAC (Forward Air Control(er))