Cognomen Korstian (Korstian 
) , worldwide, is a rare last name. The surname Korstian is characteristic of Germany, where it is a very rare surname, Indonesia, and the United States, where it is an extremely rare surname. Much less frequently, Korstian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Korstian | United States, Netherlands, Germany, Indonesia |
| clarence korstian American scientist, US (b. 1889) |
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