Last name Lacku (Lacku 
) , throughout the world, is a rare surname. The surname Lacku is characteristic of Southern Europe, particularly Serbia, where it is quite a rare surname, Albania, and Croatia, where it is a rare surname. In absolute terms, it is commonest in Southern Europe, particularly Serbia, Albania, and Italy. Very seldom, Lacku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lacku | Italy, United States, Serbia, India, Albania |