- f.
- Fils; Fille
- F.A.A.A.
- Fellow of the American Academy of Allergy
- F.A.A.A.S.
- Fellow of the American Association for the Advancement of Science
- F.A.A.N.
- Fellow of the American Academy of Neurology
- F.A.A.O.
- Fellow of the American Academy of Optometry
- F.A.A.P.
- Fellow of the American Academy of Pediatrics
- F.A.A.S.
- Fellow of the American Academy of Arts and Sciences
- F.A.B.M.G.
- Fellow of the American Board of Medical Genetics
- F.A.C.C.
- Fellow of the American College of Cardiology
- F.A.C.D.
- Fellow of the American College of Dentistry
- F.A.C.E.
- Fellow of the American College of Epidemiology
- F.A.C.H.A.
- Fellow of the American College of Health Administrators
- F.A.C.H.E.
- Fellow of the American College of Healthcare Executives
- F.A.C.M.I.
- Fellow of the American College of Medical Informatics
- F.A.C.O.G.
- Fellow of the American College of Obstetricians and Gynecologists
- F.A.C.P.
- Fellow of the American College of Physicians
- F.A.C.R.
- Fellow of the American College of Radiology
- F.A.C.S.
- Fellow of the American College of Surgeons
- F.A.C.S.M.
- Fellow of the American College of Sports Medicine
- F.A.C.T.L.
- Fellow of the American College of Trial Lawyers
- F.A.E.
- Fellow of the Accountants and Executives Corporation of Canada
- F.A.G.O.
- Fellow of the American Guild of Organists
- F.A.G.S.
- Fellow of the American Geographical Society
- F.A.H.A.
- Fellow of the American Heart Association
- F.A.H.P.
- Fellow of the Association of Healthcare Philanthropy
- F.A.I.A.
- Fellow of the American Institute of Architects
- F.A.I.C.
- Fellow of the Agricultural Institute of Canada
- F.A.P.H.A.
- Fellow of the American Public Health Association
- F.A.P.S.
- Fellow of the American Physical Society
- F.A.S.A.B.E.
- Fellow, American Society of Agricultural & Biological Engineers
- F.A.S.C.E.
- Fellow of the American Society of Civil Engineers
- F.A.S.C.P.
- Fellow of the American Society of Consultant Pharmacists
- F.A.S.M.
- Fellow of the American Society for Metals
- F.A.S.M.E.
- Fellow of the American Society of Mechanical Engineering
- F.A.Z.R.A.
- Fellow, Applied Zoologists Research Association
- F.AINA
- Fellow, Arctic Institute of North America
- F.ASTM
- American Society for Testing and Materials
- F.B.A.
- Fellow of the British Academy
- F.B.O.A.
- Fellow of the British Optical Association
- F.B.O.U.
- Fellow of the British Ornithologists Union
- F.B.Ps.S.
- Fellow of the British Psychological Society
- F.B.S.C.
- Fellow of the British Society of Commerce
- F.Brit.I.R.E.
- Fellow of the British Institution of Radio Engineers
- F.C.A.
- Fellow of the Institute of Chartered Accountants
- F.C.A.E.
- Fellow of the Canadian Academy of Engineering
- F.C.A.H.S.
- Fellow of the Canadian Academy of Health Sciences
- F.C.A.S.I.
- Fellow of the Canadian Aeronautics and Space Institute
- F.C.B.A.
- Fellow of the Canadian Bankers Association
- F.C.B.V.
- Fellow of the Canadian Institute of Chartered Business Valuators
- F.C.C.A.
- Fellow of the Association of Chartered Certified Accountants
- F.C.C.H.S.E.
- Fellow of the Canadian College of Health Service Executives
- F.C.C.M.G.
- Fellow of the Canadian College of Medical Geneticists
- F.C.C.O.
- Fellow of the Canadian College of Organists
- F.C.F.P.
- Fellow of the College of Family Physicians of Canada
- F.C.G.A.
- Fellow of the Certified General Accountants of Canada
- F.C.I.
- Fellow of the Canadian Credit Institute
- F.C.I.A.
- Fellow of the Canadian Institute of Actuaries
- F.C.I.A.R.
- Felow, Canadian Institute of Advanced Research
- F.C.I.Arb.
- Fellow of the Chartered Institute of Arbitrators (U.K.)
- F.C.I.C.
- Fellow of the Chemical Institute of Canada
- F.C.I.I.
- Fellow of the Chartered Insurance Institute
- F.C.I.P. or FCIP
- Fellow, Chartered Insurance Professional
- F.C.I.S.
- Fellow of the Chartered Institute of Secretaries
- F.C.M.A.
- Fellow of the Society of Management Accountants
- F.C.M.B.E.S.
- Fellow Canadian Medical and Biological Engineering Society
- F.C.N.R.S.
- Fellow of the Canadian Numismatic Research Society
- F.C.P.A.
- Fellow, Chartered Professional Accountant
- F.C.S.
- Fellow of the Chemical Society
- F.C.S.A.
- Fellow of the Canadian Society of Agronomy
- F.C.S.B.E.
- Fellow, Canadian Society for Bioengineering
- F.C.S.C.E.
- Fellow of the Canadian Society for Civil Engineering
- F.C.S.I.
- Fellow of the Canadian Securities Institute
- F.C.S.L.A.
- Fellow of the Canadian Society of Landscape Architects
- F.C.S.M.E.
- Fellow of the Canadian Society for Mechanical Engineering
- F.C.S.S.E.
- Fellow, Canadian Society for Senior Engineers
- F.CIFST
- Fellow, Canadian Institute of Food Science and Technology
- F.E.
- Forest Engineer
- F.E.C.S.
- Fellow of the Electrochemical Society
- F.E.I.C.
- Fellow of the Engineering Institute of Canada
- F.E.S.
- Fellow of the Entomological Society; Fellow of the Ethnological Society
- F.E.S.C.
- Fellow of the European Society of Cardiology
- F.F.A.
- Fellow of the Faculty of Actuaries (U.K.)
- F.F.P.S.
- Fellow of the Royal Faculty of Physicians and Surgeons (U.K.)
- F.F.R.
- Fellow of the Faculty of Radiologists
- F.G.A.
- Fellow of the Gemmological Association
- F.G.D.C.
- Fellow of the Society of Graphic Designers of Canada
- F.G.S.
- Fellow of the Geological Society
- F.G.S.A.
- Fellow of the Geological Society of America
- F.H.S.C.
- Fellow of the Heraldry Society of Canada
- F.I.A.
- Fellow of the Institute of Actuaries (U.K.)
- F.I.A.B.S.
- Fellow, Indian Association of Biological Sciences
- F.I.A.Fo.S.T
- Fellow, International Academy of Food Science & Technology
- F.I.A.L.
- Fellow of the International Institute of Arts and Letters
- F.I.A.S.
- Fellow of the Institute of Aeronautical Sciences (U.S.)
- F.I.Ae.S.
- Fellow of the Institute of Aeronautical Sciences
- F.I.C.
- Fellow of the Institute of Commerce
- F.I.C.B.
- Fellow of the Institute of Canadian Bankers
- F.I.C.D.
- Fellow of the International College of Dentists
- F.I.E.
- Fellow of the Institution of Engineers (Australia)
- F.I.E.E.
- Fellow of the Institute of Electrical Engineers
- F.I.I.A.
- Fellow of the Institute of Industrial Administration
- F.I.I.C.
- Fellow of the Insurance Institute of Canada
- F.I.I.F.C.
- Fellow, International Institute in FRP for Construction
- F.I.I.S.L.
- Fellow, International Institute of Space Law
- F.I.Inst.
- Fellow of the Imperial Institute
- F.I.L.A.
- Fellow of the Institute of Landscape Architects
- F.I.M.
- Fellow of the Institute of Metals; Fellow of the Institute of Materials
- F.I.M.C.
- Fellow of the Institute of Management Consultants
- F.I.M.M.M.
- Fellow of the Institute of Materials, Minerals and Mining
- F.I.R.E.
- Fellow of the Institution of Radio Engineers
- F.I.S.A.
- Fellow of the Incorporated Secretaries Association
- F.I.S.A.E.
- Fellow, Indian Society of Agricultural Engineers
- F.I.T.
- Foundation for International Training
- F.Inst.P.
- Fellow of the Institute of Physics
- F.Inst.Pet.
- Fellow of the Institute of Petroleum
- F.ISHMII.
- Fellow, International Society For Structural Health Monitoring of Intelligent Infrastructure
- F.L.A.
- Fellow of the Library Association (U.K.)
- F.L.C.M.
- Fellow of the London College of Music
- F.L.M.I.
- Fellow of the Life Management Institute
- F.L.S.
- Fellow of the Linnean Society
- F.M.S.A.
- Fellow of the Mineralogical Society of America
- F.N.A.
- Fellow of the North American Academy of Arts and Sciences
- F.N.A.A.S.
- Fellow, National Academy of Agricultural Sciences (India)
- F.N.C.M.
- Fellow, National College of Music, (U.K.)
- F.N.F.C.F.
- Fédération nationale des femmes canadiennes-françaises
- F.P.S.
- Fellow of the Philosophical Society; Fellow of the Pathological Society (Great Britain & Ireland)
- F.Phys.S.
- Fellow of the Physical Society
- F.R.A.I.
- Fellow of the Royal Anthropological Institute
- F.R.A.I.C.
- Fellow of the Royal Architectural Institute of Canada
- F.R.A.M.
- Fellow of the Royal Academy of Music (U.K.)
- F.R.A.S.
- Fellow of the Royal Astronomical Society; Fellow of the Royal Asiatic Society
- F.R.Ae.S.
- Fellow of the Royal Aeronautical Society
- F.R.B.S.
- Fellow of the Royal Botanic Society; Fellow of the Royal Society of British Sculptors
- F.R.C.C.O.
- Fellow of the Royal Canadian College of Organists
- F.R.C.D.(C)
- Fellow of the Royal College of Dentists (Canada)
- F.R.C.M.
- Fellow of the Royal College of Music
- F.R.C.O.
- Fellow of the Royal College of Organists
- F.R.C.O.G.
- Fellow of the Royal College of Obstetricians and Gynaecologists
- F.R.C.P.
- Fellow of the Royal College of Physicians
- F.R.C.S.
- Fellow of the Royal College of Surgeons
- F.R.C.S.(C)
- Fellow of the Royal College of Surgeons (Canada)
- F.R.C.V.S.
- Fellow of the Royal College of Veterinary Surgeons
- F.R.E.S.
- Fellow of the Royal Empire Society; Fellow of the Royal Entomological Society; Fellow of the Royal Economic Society
- F.R.G.D.
- Fellow, Registered Graphic Designers of Ontario
- F.R.G.S.
- Fellow of the Royal Geographic Society
- F.R.G.S.(C)
- Fellow of the Royal Geographic Society (Canada)
- F.R.H.S.C.
- Fellow of the Royal Heraldry Society of Canada
- F.R.Hist.S., F.R.H.S.
- Fellow of the Royal Historical Society
- F.R.Hort.S.
- Fellow of the Royal Horticultural Society
- F.R.I.B.A.
- Fellow of the Royal Institute of British Architects
- F.R.I.C.
- Fellow of the Royal Institute of Chemistry
- F.R.I.C.S.
- Fellow of the Royal Institute of Chartered Surveyors
- F.R.I.P.H.H.
- Fellow of the Royal Institute of Public Health and Hygiene
- F.R.M.S.
- Fellow of the Royal Microscopical Society
- F.R.Met.S.
- Fellow of the Royal Meteorological Society
- F.R.N.S.
- Fellow of the Royal Numismatic Society
- F.R.P.S.L.
- Fellow of the Royal Philatelic Society, London
- F.R.S.
- Fellow of the Royal Society
- F.R.S.
- Fellow, Royal Society (United Kingdom)
- F.R.S.A.
- Fellow of the Royal Society of Arts
- F.R.S.C.
- Fellow of the Royal Society of Canada
- F.R.S.C., F.R.S.Chem.
- Fellow of the Royal Society of Chemistry (U.K.)
- F.R.S.E.
- Fellow of the Royal Society of Edinburgh
- F.R.S.H.
- Fellow of the Royal Society of Health
- F.R.S.L.
- Fellow of the Royal Society of Literature
- F.R.S.M.
- Fellow of the Royal Society of Medicine
- F.R.S.T.M.&H.
- Fellow of the Royal Society of Tropical Medicine and Hygiene
- F.S.A.
- Fellow of the Society of Antiquaries; Fellow of the Society of Actuaries (U.S.)
- F.S.A.A.
- Fellow of the Society of Incorporated Accountants and Auditors
- F.S.B.
- Fellow, Society of Biology
- F.S.E.
- Fellow of the Society of Engineers
- F.S.M.A.C.
- Fellow of the Society of Management Accountants of Canada
- F.S.P.I.E.
- Fellow, Society of Photo-Optical Instrumentation Engineers
- F.S.S.
- Fellow of the Royal Statistical Society
- F.T.C.L.
- Fellow of the Trinity College of Music (London)
- F.Z.S.
- Fellow of the Zoological Society
- FCAOT
- Fellow, Canadian Association of Occupational Therapists
- FEC
- Fellow of Engineers Canada
- FFSSoc.
- Fellow of the Forensic Science Society
- FGC
- Fellow of Geoscientists Canada
- FIIE
- Fellow, Institution of Incorporated Engineers (U.K.)
- FISEAM
- Fellow, International Society for Engineering Asset Management
- FNASc.
- Fellow, National Academy of Sciences (India)
- FRCPC, F.R.C.P.(C)
- Fellow of the Royal College of Physicians and Surgeons of Canada
- FSSocDip.
- Forensic Science Society Diploma