Throughout the world, Севастиан (Sevastian 
, Севастиан 
, Sevastyan 
) is quite a rare male given name. The forename Севастиан is habitual in Romania, where it is quite a rare boy's name, Bolivia, and Panama, where it is a rare boy's name. Measured by absolute frequency, it most frequently occurs in Romania, Mexico, and Colombia. Likewise, Севастиан is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sevastian | Romania, Guatemala, Bolivia, Mexico, Colombia |
| Севастиан | Russia |
| Sevastyan | India, Russia, United States |
Bosćij, Seba, Sebastiaan, Sebastiaen, Sebastian, Sebastiano, Sebastianus, Sebastien, Sebastià, Sebastián, Sebastião, Sebastjan, Sebestyén, Sébastien, Себастиан, Себастиано, Себастьен, Себастьян, Себастьяно, סבסטיאן, سباستيان, سيباستيان, セバスチャン, セバスティアン, and 塞巴斯蒂安
Севастиан is also a prevalent name for the fictitious and mythical characters: Sebastian Moran , the fictional character in the Sherlock Holmes stories, The Adventure of the Empty House; Sebastian Shaw , the fictional character in Marvel Comics, X-Men: First Class; Invincible , the superhero in the Image Comics Universe, Invincible; Sebastian Blood , the fictional character from the television series Arrow and Sebastian , the Disney character, The Little Mermaid, and in many other works.
| севастиан Eastern Orthodox bishop b. 1914 d. 1992, UA (b. 1914) |
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| севастиан Russian Eastern Orthodox bishop; b. 1961, RU (b. 1961) |
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