The name Renesmee is a girl's name . Renesmee and is often added to lists like All-American Names and discussed in our forums with posts like "Love, Like, Lose -- Outlandish/Guilty Pleasures edition!".
From the experts:
Invented by author Stephenie Meyer for the Twilight series for the half-human, half-vampire daughter of Edward Cullen and Bella Swan, it's an amalgamtion of the names of Bella's mother Renee and Edward's adoptive mother Esme. Much to our surprise, some people are trying this at home.