Her name was originally Hermione Jane Granger. About OoTP JKR told that Hermione and Umbridge shared same middle name. Delores Jane Umbridge? Wasn't it?
But in DH her name is Hermione Jean Granger (adressed when Dumbledore's Will was read). That's why it's confusing. Her name at begining of Series was Hermione Jane Granger but at the very end it became Hermione Jean Weasley.
Rowling said she wanted to name her Jane, because that was her middle name, but then she figured it was also Umbridge's middle name so she changed it into Jean
Harry James Potter Ronald Bilius Weasley Hermione Jean Granger
and to tell 당신 the truth I have been with the 책 and everything from the beginning and have never heard of this rumor about it ever being Jane. Anyway, its pretty cool- cause my middle name is Jean too.
I remember saying that Hermione has the same middle name as Umbridge.But I've looked on the the Harry Potter Wiki many times and it said Hermione's middle name is Jean. So I beleive it's Jean.
In 2004, Jo told us her middle name was 'Jane' (WBD); however Rowling changed it to 'Jean" in Book 7, possibly so that Hermione and Umbridge wouldn't share the same middle name. 'Jean' is also one of the middle names of Rowling's daughter Mackenzie.
It's Hermione Jean Granger. Although it was originally Jane, but it was changed because J.K. Rowling did not want Hermione to share the same middle name with Umbridge.