Family name Pinaitis (Pinaitis 
) , in all the world, is a very rare cognomen. The cognomen Pinaitis is characteristic of Northern Europe, particularly Lithuania, where it is quite a rare surname, Sweden, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname. Much less frequently, Pinaitis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pinaitis | United Kingdom, Spain, United States, Sweden, Lithuania |