JMC
- Arani Srinivasulu
- Exercise Joint Warrior
- J. M. Coetzee
- JCM (disambiguation)
- JDK Mission Control
- JMC Academy
- JMC Air
- Jacobs Medical Center
- Jaffna Municipal Council
- Jamaica
- Jamal Mohamed College
- James Madison College
- Jammu Municipal Corporation
- Jason McRoy
- Jason Michael Carroll
- Jerusalem Music Centre
- Jesus Miracle Crusade
- Jesus and Mary College
- Jiangling Motors
- John McCain
- John McGlashan College
- John Muir College
- Joint Mathematical Council
- Joint Ministerial Committee
- Joint Modernization Command
- Joint Munitions Command
- Jose Mari Chan
- Jose Maria College
- Journal of Materials Chemistry
- Journal of Medicinal Chemistry
- Jupiter Mining Corporation
- The Jesus and Mary Chain
- United Kingdom Mathematics Trust