FH, Fh, or fh may refer to:

Businesses and institutions

• Danish Trade Union Confederation (Danish: Fagbevægelsens Hovedorganisation)
• Faculty of Humanities (The Hong Kong Polytechnic University)
• Fachhochschule, in German, a college of higher education
• Federation of the Swiss Watch Industry FH
• Futura International Airways (IATA code)

Science and technology

Biology and medicine

• Familial hypercholesterolemia, a genetic disorder
• Factor H, a complement control protein
• Family history
• FH, a gene that encodes the enzyme fumarase

Chemistry

• Ferrihydrite (Fh), a widespread hydrous ferric oxyhydroxide mineral

Other uses in science and technology

• McDonnell FH Phantom, the U.S. Navy's first jet-powered fighter aircraft
• Falcon Heavy, Spacex's heavy lift reusable rocket

Sport

• Fimleikafélag Hafnarfjarðar, Icelandic football club

Other uses

• fh (digraph); appears in Irish and some other languages
• Volvo FH, a range of trucks

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