Around the globe, Tjaša (Tjaša 
, Tjasa 
) is quite a rare principally female, but very infrequently male first name. The given name Tjaša is characteristic of Slovenia, where it is quite a common girly name, Sierra Leone, where it is quite a rare girly name, and Slovakia, where it is a rare feminine name. In absolute terms, it is the most numerous in Slovenia, Sierra Leone, and Somalia. Much less frequently, Tjaša is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tjaša | Italy, Austria, Slovenia, Germany, Croatia |
| Tjasa | Sierra Leone, Indonesia, Afghanistan, Slovenia, Somalia |
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tjaša iris Slovenian painter, SI (b. 1968) |
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tjaša jakop Slovene linguist, SI (b. 1975) |
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tjaša rutar cyclist, SI (b. 1984) |
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tjaša rener Slovene painter, SI (b. 1986) |
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| tjaša andrée prosenc figure skating official, SI (b. 1943) |
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tjaša vozel Slovenian swimmer, SI (b. 1994) |
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tjaša pintar Slovenian swimmer, SI (b. 1997) |
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| tjaša mrgole jukič SI (b. 1956) |
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| tjaša železnik Slovene actor, SI (b. 1974) |
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| tjaša jerman SI (b. 1966) |
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| tjaša jezernik Slovenian tennis player, SI (b. 1977) |
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| tjaša jug researcher |
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| tjaša pogačar researcher |
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| tjaša ristić Slovenian karateka, SI |
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| tjaša bavcon Tjaša Bavcon * Slovinsko (Slovenia) textilní návrhářka, designer nationality: Slovenian sex: female notes: spolupráce s Jasmina Ferček, SI |
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Arh, Jerman, Tavčar, Horvat, Hribar, Vidmar, Živec, Žagar, Božič, Pavlič, Petrič, Prošek, Dolinar, Hartner, Završnik, Šalamun, Kastelic, Kavčič, Križnar, Drofenik, Kovačič, Petrovič, Gruden, Rogina, Pečnik, Krajnc, Kos, Lah, Jug, Jarc, Fras, Marin, Stare, Koren, Komac, Recek, Zupančič, Jenko, Novak, Zalar, Zupan, Zorko, Medved, Mlakar, Skubic, Kokalj, Kocjan, Kovač, Jereb, and Železnik