F90 or F-90 may refer to:

Science and technology

• Alacrite, a cobalt-based alloy also known as F90
• Beechcraft King Air F90, a twin engine turboprop airplane
• BMW M5 (F90), a 6th generation of high performance variant of the BMW 5 Series
• Conventional farad, a unit of measurement, symbol F₉₀
• Fortran 90, a computer programming language
• Hyperkinetic disorder (ICD-10 code)
• Nikon F90, a 35mm SLR camera

Military

• Lockheed XF-90
• F90 assault rifle, an assault rifle by Thales Australia, a development of the Steyr AUG assault rifle

Other uses

• F-90 (comics), a fictional likeness of the Lockheed XF-90

Topics referred to by the same term

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