Cognomen 貝哲也 (貝哲也 
) , in all the world, is a very rare last name. The cognomen 貝哲也 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 貝哲也 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 貝哲也 | China |