FFO may refer to:

• Firefly Online, a video game
• Frankfurt (Oder), Germany
• Frankfurt East station, in Germany
• Funds from operations, in investment trusts a measure of revenue
• Furnace fuel oil
• Norwegian Federation of Organisations of Disabled People (Norwegian: {{lang|no|Funksjonshemmedes Fellesorganisasjon}})
• Wright-Patterson Air Force Base, in Ohio, United States

• Jenzabar.com
• Jenée LaMarque
• Jenõ Rittich
• Jenö
• Jenö Illés
• Jenö Németh
• Jenö Szántay
• Jenö Törzs
• Jenö Zsigmondy
• Jenö Ádám
• Jenő
• Jenő Dsida
• Jenő Gerbovits
• Jenő Gyárfás
• Jenő Hammersberg
• Jenő Hámori
• Jenő Hámori (economist)
• Jenő Illés
• Jenő Jendrassik
• Jenő Lasztovicza
• Jenő Major
• Jenő Manninger
• Jenő Medveczky
• Jenő Németh
• Jenő Pap