Surname Aldach (Алдаш 
, Aldach 
) , around the world, is a rare cognomen. The family name Aldach is characteristic of Kyrgyzstan, where it is a rare surname, Kazakhstan, and Germany, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Kazakhstan, Kyrgyzstan, and the United States. More prevalently, Aldach is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Алдаш | Kyrgyzstan, Kazakhstan, Russia, Azerbaijan |
| Aldach | Germany, United States, Brazil |