HFO may refer to:
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HealthForceOntario
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Heavy fuel oil
Heavy fuel oil (HFO) is a category of fuel oils of a tar-like consistency. Also known as bunker fuel, or residual fuel oil, HFO is the result or remnant from the distillation and cracking process of petroleum. For this reason, HFO contains seve ...
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Hybrid fibre-optic
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Hydrofluoroolefin
Hydrofluoroolefins (HFOs) are Saturated and unsaturated compounds, unsaturated organic compounds composed of hydrogen, fluorine and carbon. These organofluorine compounds are of interest as refrigerants. Unlike traditional hydrofluorocarbons (HFCs ...
, a refrigerant
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Hydrous ferric oxides
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Hypofluorous acid
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Halbleiterwerk Frankfurt (Oder)
Volkseigener Betrieb, VEB Halbleiterwerk Frankfurt (Oder) (abbreviated HFO or HWF) was the largest manufacturer of semiconductor devices in the German Democratic Republic. In 1989, HFO produced 110 million integrated circuits (70% of all integrat ...
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High-frequency oscillations
* Hardy Family Office, a professional wrestling stable led by
Matt Hardy
Matthew Moore Hardy (born September 23, 1974) is an American Professional wrestling, professional wrestler and actor. He is signed to Total Nonstop Action Wrestling (TNA), where he a former List of TNA World Tag Team Champions, three time TNA Wor ...
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