The name Leni is a girl's name of German origin. Leni and is often added to lists like Supermodel Baby Names and discussed in our forums with posts like "Names on NB that make you go WOW!".
From the experts:
A foreign nickname name that has never been widely used here -- possibly because of its similarity to the outdated male Lenny -- it was chosen for her daughter by high-profile German supermodel Heidi Klum.