MFB

MFB may refer to:


 * Marxist Forward Bloc, a political party in India
 * Medial forebrain bundle, a neural pathway containing fibers
 * Metropolitan Fire Brigade (Melbourne), a fire service in Victoria, Australia
 * Motional Feedback (also MFB), an active high fidelity loudspeaker system
 * Mumbai Fire Brigade, a fire service in Mumbai, Maharashtra, India