Around the globe, Katsumaru (Katsumaru 
) is a very rare male first name. The first name Katsumaru is characteristic of Eastern Asia, particularly China, where it is an extremely rare male name. More frequently, Katsumaru is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Katsumaru | Japan, China, Spain, India, Brazil |