Cognomen Григайтис (Григайтис 
, Grigajtis 
, Grigaytis) , around the globe, is a very rare family name. The surname Григайтис is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Григайтис | Russia, Ukraine, Belarus |
| Grigajtis | United States |
| григайтис, карл леопольдович LV (b. 1896) |
|