Surname Яблонскис (Jablonskis 
, Яблонскис 
, Iablonskis ) , all around the world, is a rare family name. The cognomen Яблонскис is habitual in Northern Europe, particularly Lithuania, where it is quite a common surname, Latvia, where it is quite a rare surname, and Ireland, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Lithuania, Latvia, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Jablonskis | Australia, Ireland, United States, Latvia, Lithuania |
| Яблонскис, Iablonskis | Russia |
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яблонскис, йонас Lithuanian linguist (1860-1930), LT (b. 1860) |
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| яблонскис, константинас Lithuanian legal scholar, LV (b. 1892) |
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