Family name Jintoku (Jintoku 
) , across the world, is an extremely rare last name. The last name Jintoku is characteristic of Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname. Much more prevalently, Jintoku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jintoku | United States, Japan, Brazil |
| hirokuni jintoku researcher |
|