What names do you love but not with your dialect?
[name_f]Clara[/name_f] and [name_u]George[/name_u] are some of my favorites when using my (not so convincing) vaguely British accent, but the rhotic R my native Midwestern dialect puts on both of them hurts my soul.
Jasper for sure! I love it, but I really donāt like the way it sounds in an American accent. 
Greta. I love the way [name_f]Greta[/name_f] Thunberg says it, but it sounds so bad in my accent.
Tatiana also.
I love [name_f]Dottie[/name_f] and [name_f]Rorie[/name_f] in a British accent but they just donāt sound as good in an American one.
I swear itās that R
Oh, thereās definitely a lot, I just canāt think of them atm! A lot of [name_u]French[/name_u] names, thatās for sure.
Iām hesitant with names with ātā in the middle, because they are changed to ādā in my familyās accent, which works fine with some names but not others. (@choupette I actually became very conscious of my accent as a kid and ācorrectedā this, and now my mother says I pronounce the ātā in [name_f]Greta[/name_f] too harsh. 
)
Calla. I really love it but I canāt make it sound good in my (vaguely) texas accent 
Colm! I think that [name_m]Colm[/name_m] said w/an Irish accent is the most beautiful boy name Iāve ever heard. I love it so much. I married into a big Irish American family w/an Irish ln, but we all have boring old midwest American accents. [name_m]Colm[/name_m] just doesnāt sound nearly as nice w/out the proper accent. 
Aine is another name that Iād have near the top of my list if it were only to be said by people w/Irish accents. But I donāt love it as much as [name_m]Colm[/name_m].
[name_f]Cosima[/name_f] - every time I say this name I try to say it in a British accent (COh-see-muh). I could see it being pronounced a few different ways here (cozy-muh, co-sim-uh, etc.) but they all feel so lackluster.
[name_f]Ottilie[/name_f] - With an American accent the Ts turn to Ds and the whole thing gets mangled.
[name_m]Soren[/name_m] - I love how this sounds when Iām not speaking [name_f]English[/name_f]. In the US the Ćø is completely lost (sounds like soaring).
[name_f]Aurora[/name_f] - the Rs almost hurt my mouth to say, feels like Iām slurring my words. Iām not sure another accent would help much though.
[name_m]Viggo[/name_m] - another thatās currently on my list. Sounds so strong when Iām not speaking [name_f]English[/name_f] (VEE-goh), feels like a Viking yelling it out over thrashing seas. But here the emphasis and trills are lost.
Fergus 
I want so badly for it to be Fair-Gue but not with an mid-western/almost Canadian accent lol.
Basil
Thatās a real one! [name_m]Baz[/name_m]-ill is nice but [name_u]Bay[/name_u]-sul is not.
I have a hybrid accent (Icelandic/German/Kiwi)
I just can NOT pronounce [name_f]Aurora[/name_f]. It sounds GROSS. I canāt pronounce āRā sounds when theyāre repeated so close together like that.
Iām fine with some R sounds repeated. I can pronounce Briar, for example.
Practically any name SJ Strum says in her lovely British accent sounds way better to how I (a Midwesterner) would say itš
Lucy. Which is my own name. [name_f]My[/name_f] parents have different accents to meā¦
This is such an interesting topic! I feel like there are so many names my hybrid accent probably mangles but the one that comes to mind first is [name_u]August[/name_u], which is such a shame because I love it so. In my accent and the areas where my family lives, there is no difference in sound between āauā and āorā, they both just sound like āorā. This is not sooo awful in [name_u]August[/name_u] as āorr-gustā (although I donāt love it), but when saying the otherwise adorable nn [name_m]Auggie[/name_m] ā¦ the first syllable pronounced as āorā definitely makes it sound too similar to other things, in my opinion.
Omigosh I had never made that link between [name_m]Auggie[/name_m] and something else very close. I also have an accent that doesnāt distinguish between au/or!
Ah no, Iām sorry! 
I feel like itās one of those things you canāt unsee/un-hear either