Family name Kokubun (Kokubun 
, 国分 , Кокубун) , worldwide, is a rare cognomen. The surname Kokubun is characteristic of Japan, where it is a very rare surname, Peru, and the United States. Not in comparison with a country's population, it is commonest in the United States, Japan, and Brazil. Also, Kokubun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kokubun | Japan, China, Brazil, United States, Peru |
| 国分 | China |
| kokubun tanemitsu (b. 1241) |
|
|
| kokubun moritsuna (b. 1438) |
|
|
| russell s. kokubun American politician, US (b. 1948) |
|
|
| keisuke kokubun researcher |
|
|
| mika kokubun researcher |
|
|
| tetsuo kokubun researcher |
|
|
| motohide kokubun researcher ORCID ID = 0000-0003-3529-3029 |
|
|
| eduardo kokubun researcher |
|
|
| taiki kokubun researcher (ORCID 0000-0003-2743-9550) |
|
|
| yasuo kokubun researcher |
|
|
| takanori kokubun researcher |
|
|
| kokubun moriyuki |
|