Leni is a name of German origin, meaning "torch". It was originally used as a nickname for people with the given names Elenor or Lenora. The name Leni gained popularity in the early 20th century due to its use by notable figures such as Leni Riefenstahl, a German actress and filmmaker known for her work during the Nazi era.
"The name Leni experienced significant fluctuations over time with regards to its popularity during birth years. After a peak of 200 births in 2023, it reached its lowest point with only 5 births in multiple years between 1947 and 2008."