Family name Radvilavičiūtė (Radvilavičiūtė 
) , in the entire world, is a very rare surname. The cognomen Radvilavičiūtė is habitual in Northern Europe, particularly Lithuania, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Radvilavičiūtė | Lithuania |
| giedra radvilavičiūtė writer (born 1960), LT (b. 1960) |
|