Family name Ladne (Ladne 
) , in the world, is a very rare surname. The surname Ladne is characteristic of Poland, where it is a very rare surname, the United States, where it is an extremely rare surname, and India. Very seldom, Ladne is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ladne | Philippines, Poland, India, Brazil, United States |