Last name Ilku (Ilku 
, Илку 
, Ілку 
) , around the globe, is a rare cognomen. The cognomen Ilku is habitual in Eastern Europe, particularly Hungary, where it is quite a rare surname, Ukraine, where it is a rare surname, and Russia, where it is a very rare surname. Much less frequently, Ilku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilku | Hungary, Germany, United States, India, China |
| Илку | Russia |
| Ілку | Ukraine |
|
ilku istván Hungarian footballer (1933-2005), HU (b. 1933) |
|
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ilku péter football player (1936-2005), HU (b. 1936) |
|
| ilku pál Hungarian politician (1912-1973), HU (b. 1912) |
|
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| ilku jános Hungarian photographer, HU (b. 1946) |
|