Family name Kielian (Kielian 
) , throughout the world, is a rare surname. The family name Kielian is characteristic of Poland, where it is a rare surname, the United States, where it is a very rare surname, and Germany. Likewise, Kielian is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kielian | Poland, United Kingdom, Germany, United States |
| władysław kielian Polish politician and deputy, PL (b. 1952) |
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| margaret kielian Microbiology researcher |
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| tammy kielian researcher ORCID ID = 0000-0001-7624-670X |
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