I don't mean names that you think are:
'posh' (Fenella)
'chavvy' (Kayden)
'princessey' (Annabelle)
'hypheney' (Ellie-Mae)
'illiterate' (Mykal)
'ubiquitous' (Ruby)
'celeby' (Britney)
and so forth.
I mean names which for absolutely no reason you can put your finger on, you really really dislike. They don't come with associations or baggage, you just don't like it.
The test is, if you can say: "I don't like it because...(it reminds me of a horrible kid in primary school/it's really dated/ I know fifteen of them)" then it doesn't count. There has to be absolutely no justifiable (or unjustifiable) reason for your dislike of it.
For me: Hazel.
I just think it's really a horrid name.