Family name Jm. (Jm. 
) , throughout the world, is a very rare cognomen. The cognomen Jm. is characteristic of South-eastern Asia, particularly Indonesia, where it is a very rare surname. More frequently, Jm. is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jm. | China, Indonesia, Spain, Pakistan, France |
Giuseppe Maria, Jm, Jose Mari, Josef Maria, Josep Maria, Joseph Maria, Josephus Maria, José Mari, José Maria, José María, José Mª, Хосе Мария, and Хосемария