Surname Semín (Semín 
) , around the world, is a very rare family name. The family name Semín is characteristic of Czechia, where it is a rare surname, and Argentina, where it is an extremely rare surname.
| alejandro semín Italian painter, ES (b. 1550) |
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| julio césar semín Spanish painter, ES (b. 1584) |
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michal semín Czech publicist and politician, CZ (b. 1967) |
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| josef semín CZ (b. 1922) |
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