Around the globe, Heliodor (Heliodor 
, Гелиодор 
, Héliodore 
) is a rare boy's forename. The forename Heliodor is habitual in Czechia, where it is a rare masculine name, Poland, and Germany, where it is a very rare male name. Not in comparison with a country's population, it is the most numerous in Eastern Europe, particularly Poland, Russia, and Czechia. More frequently, Heliodor is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Heliodor | Philippines, Czechia, Mexico, Poland, Germany |
| Гелиодор | Kazakhstan, Kyrgyzstan, Russia |
| Héliodore | France |
| Геліодор | Ukraine |
Heliodore, Heliodoro, Heliodorus, and Илиодор
| heliodoros ancient Greek sculptor (b. 200) |
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| heliodor knauer CZ (b. 1700) |
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heliodor jan stanisław skórzewski PL (b. 1792) |
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heliodor święcicki PL (b. 1854) |
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| heliodor truska (1821-1854), CZ (b. 1821) |
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heliodor cepa Polish officer (1894-1974), PL (b. 1894) |
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heliodor sztark PL (b. 1886) |
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heliodor píka Czechoslovak general, legioneer and army general, CZ (b. 1897) |
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heliodor laskowski Lieutenant Commander of the Polish Navy, PL (b. 1898) |
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| heliodor kraus holocaust victim, b. 1881-01-11, CZ (b. 1881) |
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heliodoro faus pérez Spanish teacher, ES (b. 1938) |
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| heliodor konopka association football player (1892-1967), PL (b. 1892) |
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| heliodor ireneusz różycki-szwejkowski pathologist from Poland, PL (b. 1904) |
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| heliodor chmielewski (b. 1911) |
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| heliodor uchytil (b. 1927) |
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