Cognomen Doktori (Doktor 
, Doktori 
) , in the world, is quite a rare surname. The last name Doktori is characteristic of Hungary, where it is quite a rare surname, Czechia, and Serbia. Measured by absolute frequency, it is the most numerous in Hungary, Germany, and the United States. Likewise, Doktori is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Doktor | Hungary, Germany, Czechia, United States, Egypt |
| Doktori | Greece, United States, Israel |