Last name Grigelionis (Grigelionis 
) , throughout the world, is a very rare surname. The surname Grigelionis is habitual in Northern Europe, particularly Lithuania, where it is quite a rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Grigelionis | United Kingdom, Lithuania |
| bronius grigelionis LT (b. 1935) |
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| julius grigelionis audio technician |
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| stasys grigelionis Ph.D. Vilniaus universitetas 1973 |
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| gintautas grigelionis researcher (ORCID 0000-0003-4939-2319) |
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| i grigelionis researcher |
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