Surname 玉内 (玉内 
, Tamauchi 
) , in the entire world, is an extremely rare cognomen. The surname 玉内 is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more frequently, 玉内 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 玉内 | China |
| Tamauchi | United States |