Cognomen دوتشي (Dochi 
, Duce 
, Ducci 
) , in the entire world, is a common last name. The cognomen دوتشي is habitual in Japan, where it is quite a rare surname, Italy, and Latvia. In absolute terms, it most frequently occurs in Japan, Italy, and the United Kingdom. Very seldom, دوتشي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dochi | Indonesia, Philippines, United Kingdom, Japan, United States |
| Duce | Indonesia, Philippines, United Kingdom, Italy, United States |
| Ducci | United Kingdom, Australia, Brazil, Italy, United States |