Surname Saimaru (Saimaru 
) , in all the world, is a very rare family name. The last name Saimaru is characteristic of Japan, where it is a very rare surname, Brazil, where it is an extremely rare surname, and the United States. Very seldom, Saimaru is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saimaru | Japan, China, United States, India, Brazil |
| tatewaki saimaru (b. 1822) |
|