Charlie (given name) – Wikipedia

Charlie is a traditionally masculine given name in English-speaking countries, often a nickname for Charles but is now used as a unisex name.For girls, Charlie acts either as a nickname for Charlotta, Charlotte or Charlene, or sometimes on its own.The different forms of spelling are most commonly used for the feminine forms. These spelling variants include Charlee, Charli, Charly, and Charleigh.

https://en.wikipedia.org/wiki/Charlie_(given_name)