MBF may refer to: MBF, an Australian health insurance provider now merged with Bupa Marine's Best Friend, a Doom source port based on Boom One thousand board feet, a measurement in common use in the North American lumber industry Microsoft Binary Format, a floating point number format MBF Bioscience, a bioscience research software development company Minimum breaking force, a measurement for ropestrengths in kilonewtons (kN) Master of Banking and Finance Militärbefehlshaber in Frankreich (English: German Military Command in France), which administered Occupied France during World War II