IFB

IFB may refer to:
 * Illinois Farm Bureau
 * Independent Fundamental Baptist, Independent Baptist Christian congregations
 * Institute of Forest Biodiversity, Indian research agency
 * International Freedom Battalion in the Syrian Civil War started in 2011
 * Interruptible foldback (or interruptible feedback), electronic monitoring in TV and filmmaking
 * Instituto Federal de Brasília (Federal Institute of Brasília), an institute of technology in Brazil
 * Irish Film Board (now Fís Éireann/Screen Ireland), Irish film production agency
 * IFB Home Appliances, India
 * Independent Forward Bloc, a political party in Mauritius
 * Invitation for bid, a formal letter for generating competing proposals