I'm not a fan of Imogen, Pearl/Ruby/Opal, Maeve and Clementine. And although I don't hate them, I never really understood the appeal of Ava/Eva/Eve/Ivy...
Any car name, i.e. mercedes, porche
Madison - love this on a boy
Mackenzie - again love on a boy
Ashley - boy again
mostly girlish sounding names that were once on boys.
Gertrude, Agatha, Agnes, Helen, Prudence, Barbara, Grayce, Juniper, June, Phoebe, Monique, Monica, Nikki, Clover, Mischa, Roma, Ramona, Roberta, Tina, Edwina, Bertha, Bethenny, Kenna, Alda, Josephine, Josephinette, Josephina, Persephone, Fabiola, Cashmere, ... so on!
24 year old name lover!
Alexis and Leonie. They make me cringe
Olga, Ursula, Gertrude (although Trudy is cute)... they sound too hard and old. Yet, the language school I work at has suddenly had an influx of teenage Olgas from South America, Russia and Eastern Europe. I was surprised because I think of it as such an old name.
Neveah probably. Also boy names on girls. And I don't like Jaylin/Jayleigh/Kinley/etc. I don't like anything cutsie sounding or two nickname-y. A name I "should" like but can't stand is Claire- sounds to prissy and snobbish to me for some reason, despite it being a perfectly reasonable name. I must have some negative association I can't put my finger on.
Charlotte. (I've never liked it), Nevaeh, Yasmin (reminds me of the birth control pill of the same name), Dorcas, Taylor (on a girl), most traditional boys names on a girl, and mostly any Kree8tivleigh spelled names.
Anything too out there or too trendy. It makes me crazy that perfectly pretty names like Isabella sometimes get hijacked (in this case largely by a bunch of Twilight fans) and is used to the point that I have to use every bit of self control that I have to not do a giant eye roll every time I hear it now. And let me guess, you call her Bella. Ugh.
Phoebe, Courtney, Poppy, Gertrude, Beulah, Myrtle, Lola, Lulu, Luna, Mabel, Bailey, Piper, Harper, Willow, Sloane, Greer, most "Lil" names
For a few of these, I've occasionally seen a really awesome middle name that complements the name in a way that makes it okay.