Cognomen Lajaini (Lajaini 
) , in the world, is a very rare last name. The last name Lajaini is characteristic of South-eastern Asia, particularly Indonesia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Very seldom, Lajaini is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lajaini | Indonesia, United States, Philippines, India |