Family name Octamar (Octamar 
) , in all the world, is a very rare surname. The surname Octamar is habitual in Indonesia, where it is a very rare surname, Venezuela, and the United States, where it is an extremely rare surname. Much less frequently, Octamar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Octamar | Brazil, United States, Venezuela, Indonesia |