FNB may refer to:
Financial institutions Farmers National Bank (disambiguation) First National Bank (disambiguation) First Nations Bank of Canada First Niagara Bank, an American bank Florida National Bank, an American bank FNB Corporation, an American financial services corporation FNB United Corp., an American bank holding company
Transport Brenner Field, in Nebraska, United States Farnborough (Main) railway station, in England Ferrotramviaria, an Italian rail operator managing the Ferrovie del Nord Barese network Neubrandenburg Airport, in Mecklenburg-Vorpommern, Germany
Other uses Benin Navy (French: ) Food Not Bombs, an anti-hunger activist group Fox Business Network, an American financial news network Friday Night Baseball on Apple TV+, a baseball broadcast by Apple Inc. The Friday Night Boys, an American rock band New Belgian Front (French: ), a Belgian political party
People's Action No to More Road Tolls (Norwegian: ), a Norwegian political party
Suomen Tietotoimisto (Swedish: ), a Finnish news agency FNB Stadium, a South African soccer stadium 4 Non Blondes, an American pop rock band