Last name Grinkevicius (Grinkevicius 
) , all around the world, is a rare cognomen. The family name Grinkevicius is characteristic of Lithuania, where it is quite a rare surname, Latvia, where it is a rare surname, and New Zealand, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Lithuania, Latvia, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Grinkevicius | United Kingdom, Latvia, Argentina, Lithuania, United States |