One of the Scandinavian countries has this. I recall reading to my students a news article from 2 decades ago at least where a woman was actually charged because she named her son “Christophpher.” (Not a misspelling).
My favorite candidate for a woman’s name is “chlaymidia.”
I believe that it was Denmark and that the parents who named their son Christoppher (I think that you got the spelling right) weren’t charged criminally but had to pay a fine once a year for refusing to change the spelling of their son’s name to a name on the official list. That case is from where I got the idea of having a national registry of acceptable names.
Were I in charge of the government, I just wouldn’t let parents register a child with such name, and instead would register the child with the closest acceptable name until the parents chose an acceptable name.
I once knew someone from Venezuela who swore to me that he knew a girl whose given name was “Clitoris.”