MU, Mu or μ may refer to:
A music genre is a conventional category that identifies some pieces of music as belonging to a shared tradition or set of conventions.
Mumbai (, also known as Bombay , the official name until 1995) is the capital city of the Indian state of Maharashtra.
Muhammad (Arabic: مُحَمَّد, pronounced [muħammad]; c. 570 CE – 8 June 632 CE) was an Arab religious, social and political leader and the founder of Islam.
Munich ( MEW-nik; German: München [ˈmʏnçn̩] (listen); Austro-Bavarian: Minga [ˈmɪŋ(ː)ɐ]; Latin: Monachium) is the capital and most populous city of Bavaria, the second most populous German federal state.
Multiple sclerosis (MS) is a demyelinating disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged.
Muammar Mohammed Abu Minyar al-Gaddafi (; c. 1942 – 20 October 2011), commonly known as Colonel Gaddafi, was a Libyan revolutionary, politician, and political theorist.