Family name Экстер (Ekster 
, Экстер 
) , in the world, is a rare cognomen. The last name Экстер is characteristic of Kazakhstan, where it is a rare surname, Netherlands, and Poland, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in the United States, Russia, and Kazakhstan. Very seldom, Экстер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ekster | Germany, Belgium, United States, Poland, Netherlands |
| Экстер | Kazakhstan, Russia |
|
александра экстер Russian and French painter and designer (1882–1949), RU (b. 1882) |
|