DD1 is Marianne, so I may be biased...
Whenever we tell people her name, it is divided between approval because it is a good, traditional, pretty but grown up name, and people appreciating it for Leonard Cohen/Marianne Faithful/French Revolution reasons, or both.
It is spelled in the traditional way (can't abide names with "quirky" spellings - far too try hard)
Marianne works well for a girly but strong little five year old girl, who has mud on her face, book in her hand and is off on a daydream, having done her own hair with a million clips 
but you could also imagine a Dr Marianne or Marianne the MP.
She gets Mimi as a nickname - the only people who call her Mazz/Mazza/Mazzmeister are my family when they are trying to annoy me 
She also gets "Marianne Frying Pan", "Marianna", and "Monster" as kind of family names.
People (idiots or the hard of hearing) sometimes can't get their heads round it and call her "Miriam" "Mary Anne" "Marina" and all sorts, but then DH gets that kind of idiocy and his name is Nick (Neil, Mick, Pip, etc) , so you just have to kind of ignore people like that.
Marianne is the personification of the French Revolution... Liberty and Reason
I had never heard of Juno before the film, and it is too short for my liking.