Family name Janušonis (Janušonis 
, Янушонис 
) , throughout the world, is a very rare surname. The surname Janušonis is characteristic of Lithuania, where it is quite a rare surname, and Russia, where it is a very rare surname.
| stepas janušonis LT (b. 1933) |
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| vinsas janušonis Lithuanian university teacher, LT (b. 1950) |
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| audrius janušonis LT (b. 1968) |
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| skirmantas janušonis researcher |
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