Family name Ošlaj (Ošlaj 
) , in all the world, is a very rare last name. The surname Ošlaj is characteristic of Southern Europe, particularly Slovenia, where it is quite a rare surname, and Croatia.
| VARIANT | COUNTRY |
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| Ošlaj | Croatia, Slovenia |
| jože ošlaj SI (b. 1941) |
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| borut ošlaj Slovene philosopher, SI (b. 1964) |
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| damjan ošlaj Slovenian footballer, SI (b. 1976) |
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| štefan ošlaj SI (b. 1971) |
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| benjamin ošlaj SI |
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| matej ošlaj SI |
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| štefan ošlaj SI |
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