Surname Gilaitis (Gilaitis 
) , throughout the world, is a very rare last name. The family name Gilaitis is habitual in Northern Europe, particularly Lithuania, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gilaitis | Lithuania, United Kingdom |
| vytautas gilaitis (b. 1949) |
|