NFB may refer to: Biology NF-κB, in molecular biology, often written as NF-B Neurofeedback, therapy technique that presents the user with realtime feedback on brainwave activity

Organisations National Federation of the Blind, American non-profit organization National Federation of Builders, British trade association National Film Board of Canada, Canada's public film producer and distributor Network of Excellence for Functional Biomaterials, research centre based in Galway, Ireland N.F.-Board, Non-FIFA football representative organisation

Other uses Negative feedback, process of feeding back to the input a part of a system's output, so as to reverse the direction of change of the output Noise from the Basement, debut album by Canadian singer Skye Sweetnam North Fork Bank, which was acquired by Capital One Bank in 2008