| Acronym | Definition |
|---|
| FNB➣Fairfield National Bank (Lancaster, OH) |
| FNB➣First Niagara Bank (New York) |
| FNB➣First Northern Bank (California) |
| FNB➣First National Bank |
| FNB➣Food and Nutrition Board (Institute of Medicine, National Academy of Sciences) |
| FNB➣Food Not Bombs |
| FNB➣Fine Needle Biopsy |
| FNB➣Food and Beverage (industry) |
| FNB➣Fonds Négociables en Bourse (French: Negotiable Scholarship Fund; Canada) |
| FNB➣Fédération Nationale des Boissons (French: National Federation of Beverages) |
| FNB➣Fédération Nationale du Bois (French: National Wood Federation) |
| FNB➣Front Nouveau de Belgique |
| FNB➣Finska Notisbyrån (Finnish National News Agency) |
| FNB➣Fédération Nationale Bovine (French: National Bovine Federation) |
| FNB➣Flexible Network Bus |
| FNB➣Fancy New Beesly (from The Office television series) |
| FNB➣Fencing New Brunswick |
| FNB➣Four Non Blondes (band) |
| FNB➣Front of National Blocs (Iraq) |
| FNB➣Frequency - Narrow Band |