Worldwide, Исидор (Isidore 
, Isidor 
, Isidorus 
, along with others...) is a common predominantly masculine, but very seldom feminine forename. The forename Исидор is habitual in Jersey, where it is quite a common masculine name, Cameroon, and Israel (explore the name in all countries). Measured by absolute frequency, it is commonest in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, Cameroon, and Ethiopia. Very seldom, Исидор is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Isidore | Ethiopia, France, Cameroon, Nigeria, Democratic Republic of the Congo |
| Isidor | France, Cameroon, Nigeria, Germany, Democratic Republic of the Congo |
| Isidorus | Netherlands, Israel, United States, Belgium, Indonesia |
| Исидор | Serbia, Bulgaria, Belarus, Kazakhstan, Russia |
| Issidor | United States, India, Nigeria, South Africa |
Исидор is also a name for the fictitious and mythical characters: Isidore Nabi , the fictional character, supposed author of a number of humourous academic articles; Isidore Lechat , the fictional character, Business is business; Isidoro Cañones , the Fictional character from Argentine comics and Isidor Straus , the musical character in the musical Titanic by Maury Yeston.
| исидор RU (b. 1550) |
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коперницкий, исидор станиславович Polish physician, anthropologist and ethnographer (1825-1891), UA (b. 1825) |
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шараневич, исидор иванович Ukrainian historian, UA (b. 1829) |
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исидор иванович воробкевич Ukrainian composer (1836-1903), UA (b. 1836) |
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| исидор николић-џавер politician, RS (b. 1806) |
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| исидор стојановић RS (b. 1808) |
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эльяшов, исидор захарович Yiddish writer, LT (b. 1871) |
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исидор бајић Serbian composer, RS (b. 1878) |
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исидор самойлович золотаревский UA (b. 1885) |
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барахов, исидор никифорович politician (1898-1938), RU (b. 1898) |
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| исидор добровић HU (b. 1841) |
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| исидор роман антоний ромер RU (b. 1843) |
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| трембицкий исидор UA (b. 1847) |
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болотин, исидор михайлович Soviet singer and opera singer (1907-1961), BY (b. 1907) |
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| мидловский, исидор михайлович UA (b. 1854) |
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