| J.M | Just Mentioned 
| Others |
| J/M | Jettison Motor
| Others |
| JM | Jack Meade
| Others |
| JM | Jacob Martin
| Others |
| JM | Jacques Mahul
| Others |
| JM | James Madison
| Others |
| JM | James Maslow
| Others |
| JM | James Matthew
| Others |
| JM | James Maybrick
| Others |
| JM | Jangli Maharaj
| Others |
| JM | Japanese Man
| Others |
| JM | Jazz Master
| Others |
| JM | Jean Marc
| Others |
| JM | Jean Marie
| Others |
| JM | Jean Michel
| Others |
| JM | Jedi Master
| Others |
| JM | Jedi Masters
| Others |
| JM | Jeff And Maria
| Others |
| JM | Jeffamine M600
| Others |
| JM | Jeffery Michael
| Others |
| JM | Jendrassik manoeuvre
| Others |
| JM | Jenny Mulder
| Others |
| JM | Jerome and Mary
| Others |
| JM | Jerome Morgan
| Others |
| JM | Jerry Mckinnis
| Others |
| JM | Jerry Miculek
| Others |
| JM | Jilted Mindz
| Others |
| JM | Jim Moriarty
| Others |
| JM | Job Matching
| Others |
| JM | Job Model
| Others |
| JM | John Mackie
| Others |
| JM | John Madden
| Others |
| JM | John Manning
| Others |
| JM | John Margolies
| Others |
| JM | John Marlin
| Others |
| JM | John Mathieson
| Others |
| JM | John Mayer
| Others |
| JM | John Millington
| Others |
| JM | John Murphy
| Others |
| JM | Johns Manville
| Others |
| JM | Joint Magistrate
| Others |
| JM | Joint Mission
| Others |
| JM | Joint Missions
| Others |
| JM | Joke Master
| Others |
| JM | Jon Michael
| Others |
| JM | Jong Man
| Others |
| JM | Jose Marti
| Others |
| JM | Joseph Mark
| Others |
| JM | Joseph Martin
| Others |
| JM | Joseph Matti
| Others |
| JM | Journalism Mentor
| Others |
| JM | Jovial Munchkin
| Others |
| JM | Jumpers Master
| Others |
| JM | Junior Member
| Others |
| JM | Junior Midget
| Others |
| JM | Junk Mail
| Others |
| JM | Jurafsky Martin
| Others |
| JM | Jure Matris (in the right of one's mother)
| Others |
| JM | Just Magnificent
| Others |
| JM | Just Marvelous
| Others |
| JM | Just Me
| Others |
| JM | Just Messing
| Others |
| JM | Just Missed
| Others |
| JM | Just Missing
| Others |
| JM | Juvenile Myositis
| Others |
| JM | juxtamedullary
| Others |