Last name Ilek (Ilek 
) , all over the world, is a rare surname. The family name Ilek is habitual in Czechia, where it is a rare surname, Bulgaria, and Croatia, where it is a very rare surname. In absolute terms, it is the most numerous in Brazil, Czechia, and Germany. Very seldom, Ilek is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilek | Germany, Poland, Brazil, Czechia, Turkey |
| františek ilek CZ (b. 1855) |
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| stanislav ilek Czech lawyer and civil servant (1888-1948), CZ (b. 1888) |
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| bohuslav ilek Czech literary theorist and translator (1902-1988), CZ (b. 1902) |
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| josef ilek (b. 1897) |
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| miroslav ilek (b. 1923) |
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| vít ilek SK (b. 1925) |
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| františek ilek CZ (b. 1955) |
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