James Madison University is a public research university in Harrisonburg, Virginia, United States.

JMU may also refer to:

Jamui railway station, in Bihar, India Japan Marine United Jiamusi Songjiang International Airport, in Heilongjiang, China Jimei University, in Xiamen, Fujian, China Jewish Military Union, a Second World War resistance organization Julius-Maximilians University of Würzburg, in Germany Liverpool John Moores University, in England