FNR

FNR may refer to:

Science and medicine

 * False negative rate
 * Agency for Renewable Resources (German: Fachagentur Nachwachsende Rohstoffe), in Germany
 * Fast-neutron reactor
 * Ferredoxin—NADP(+) reductase
 * FNR regulon
 * Ford Nuclear Reactor at the University of Michigan

Transport

 * Farid Nagar railway station, Pakistan, station code
 * Farningham Road railway station, England, station code
 * Fung Nin Road stop, Hong Kong, station code
 * Funter Bay Seaplane Base, Alaska, US, IATA code
 * Namur railway station (Belgium), station code

Other uses

 * Frazer-Nash Research, UK R&D company