Last name Halaj (Halaj 
, Halage , Халай 
) , all over the world, is quite a common family name. The cognomen Halaj is characteristic of Slovakia, where it is quite a common surname, Albania, where it is quite a rare surname, and Czechia, where it is a rare surname. Not in comparison with a country's population, the name is most common in India, Slovakia, and Ukraine. Much less frequently, Halaj is the forename as well as the last name.
| ján halaj SK (b. 1914) |
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| ján halaj (b. 1919) |
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| peter halaj Czechoslovak soccer player (b. 1968) |
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| juraj halaj Slovak ice hockey player, SK (b. 1969) |
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| asala halaj researcher |
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| matej halaj |
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