NMU

• Northern Michigan University, a public university in Marquette, Michigan, US
• Nelson Mandela University, a public university in Port Elizabeth, South Africa
• National Mining University of Ukraine, now Dnipro University of Technology
• Nishtar Medical University, in Multan, Punjab, Pakistan
• North Maharashtra University, Maharashtra, India

• National Maritime Union, a former American labor union
• National Miners' Union (1928–35), American affiliate of the Red International of Labour Unions

• N-Nitroso-N-methylurea, an alkylating agent
• Neuromedin U (NmU or NMU), a neuropeptide
• Maidu language (ISO 639: nmu)

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