Abbreviations beginning with h

HFNPDUHigh Frequency Network Protocol Data Unit
Computing » IT

HFNRRHi-Fi News and Record Review (magazine; now Hi-Fi News)
Miscellaneous

HFNSHeart Failure Nurse Specialist (cardiology)
Academic & Science

HFNSHemorrhagic Fever with Nephrotic Syndrome
Academic & Science

HFNSHigh-Flux Neutron Source
Academic & Science

HFNSHot Flashes and Night Sweats (medical symptoms)
Academic & Science

HFNSHoly Family of Nazareth School (Irving, TX)
Miscellaneous

HFNSHousehold Food and Nutritional Security (International Fund for Agricultural Development and Belgian Survival Fund joint program)
Miscellaneous

HFNSCHealthcare Foundation Northern Sonoma County (California)
Miscellaneous

HFNVHemophilia Foundation of Nevada (Las Vegas, NV)
Academic & Science

HFNWRHakalau Forest National Wildlife Refuge (Hawaii)
Academic & Science

HFNYHealthy Families New York
Miscellaneous

HFOHealth Force Ontario (Canada)
Academic & Science

HFOHaas Factory Outlet (machine tool distributor; Twinsburg, OH)
Business

HFOHeavy Furnace Oil
Business » Products

HFOHigh Frequency Oscillator
Governmental » NASA