Adeline has a lovely, old-fashioned "Sweet Adeline" charm, but has become so popular in the US under so many spellings and variations — with Adalynn and Adalyn also popular — that considered together it is far more popular than it first seems. Adorable nickname Addie is also pervasive.

Arabella, lovely and elegant, has long been well used in Britain and finally made it onto the American list in 2005. A Top 50 choice in the UK, in the US in remains in the Top 300, given to around 1300 babies each year.

This is a charming name that rose steeply along with other-belle names, such as Isabelle, until the horror film Annabelle and its sequels knocked it out of favor. Made famous by the Edgar Allen Poe poem Annabel Lee. Annabelle is saucy and stylish, a tad upscale, has a sense of humor, is melodious and lively, but is unfortunately off its peak.

Acacia is an attractive, rarely used Greek flower name enhanced by its popular beginning-and-ending-with 'a'-construct, and is gradually beginning to catch on as a new member of the stylish girl names starting with A.