The meaning of the Acronym HFO is...

HFO is

• Harrisburg Field Office

More Meanings For HFO:

• Hafnium Oxide
• Haas Factory Outlet
• Heavy Furnace Oil
• High Frequency oscillator
• Harrisburg Field Office
• Heavy Fuel Oil

HFO is also in:

• Chemistry
• Firms
• NASA
• Products
• State and Local
• Suppliers