Aoife, pronounced EE-fa, is derived from the Irish word aoibh, meaning "beauty." Aoife was borne by several different heroines of ancient Irish legend. In one tale, she was the fiercest woman warrior in the world and enemy of her twin sister, Scathach.
 
Aoife is very popular in Ireland, and is catching on across the UK as well. Aoife is sometimes Anglicized as Eva, but the names are from independent origins. Eva shares roots with Eabha and Aoibhe, both also currently popular in Ireland.

Aoife

Avalon, an island paradise of Celtic myth and Arthurian legend--it was where King Arthur was taken to recover from his wounds-- and also the colorful capital of the California island of Catalina-- makes a heavenly first name. Actress Rena Sofer and British musician Julian Cope used it for their daughters.
 Avalon manages to blend the appeal of Ava and Evelyn, while sounding more interesting and unique.

Avalon

Aveline is a name that's long been an obscure cousin of more widely-used choices, but may come into its own riding the tail of the megapopular Ava, which may derive from the same root.

 Although Aveline is a cognate of the French word for "hazlenut", the name actually derives from an obscure Germanic root, the meaning of which is not clear. Theories include "desired, wished for" and "water, island".
 
Aveline is different enough to sound distinct, but be warned: You will forever be explaining that no, it's not Adeline, not Evelyn, and so on.

Aveline

Averyl

Avi, the short form of many Hebrew names, is often used on its own in Israel. It entered the US Top 1000 for the first time in 2015.

Avia

Aviana is a name that's kinda like the megapopular Ava, and kinda like the popular Ariana, and not quite as widely appealing as either of them.  But it's on everyone's scope now as the choice of actress Amy Adams for her new daughter -- ironic as she was quoted as saying she wanted a "normal" name. Turns out that Adams was born in Aviano, Italy, explaining the mystery. The first syllable of the name can be pronounced ah, ay, or (most commonly) to rhyme with have.

Aviana

Though Abigail has long been a very popular girls' name in the US, modern Hebrew form Avigail is rare here but among the Top 10 girls' names in Israel. 

Avigail

Avis is a bird name that's been in hibernation for awhile, possibly due to the car rental association, but it could make a return on the wings of Ava. Baldwin brother Daniel chose it for his daughter.
 Avis Everhard is the fictional narrator of the Jack London dystopian novel The Iron Heel. In the Harry Potter books, Avis is not a character, but a spell.

Avis

Aviva is vivacious and memorable, a fresh spin on the Vivian and Vivienne names that have been getting more popular since Angelina and Brad chose one for their twin daughter. Another A-beginning palindrome name: Aziza. 

Aviva

French Canadian pop star Avril Lavigne has put the spotlight on her name. 

Avril

Avalee

Avaron

Avarona

Avasa

Avatara

Avelaine

Avelina

Avelyn

Avena

Averna

Avian

Avina

Avonlea

Avonmora

In Greek mythology, Evadne was the daughter of Poseidon. Evadne also appears in literature (Mary Shelley's "The Last Man") and has a pop culture reference as the cousin of Wonder Woman. A more unusual alternative to other Greek "-ee" names like Ariadne, Daphne and Penelope. The trendy "Ev" sound makes this a lovely choice in a world of Evelyns, Evangelines and Everlys.

Evadne

Why is Evangeline so popular -- close to Number 200 in the US -- while Evangelina hasn't charted in the Top 1000 since the early 1950s? The stardom of Evangeline Lilly has something to do with the relative popularity of that form, but Evangelina is just as pretty and romantic but given to only 10% as many baby girls.

Evangelina

Evangeline is a romantic old name enjoying a major comeback, thanks to its religious overtones, Eva's popularity, and the star of the TV megahit Lost, Evangeline Lilly. Evangelia and Evangelina — two variants of Evangeline — are sure to tag along for the ride.

 Evangeline was introduced to the English-speaking world by Longfellow in his hugely popular eponymous narrative poem, and can also be found in Uncle Tom's Cabin (it was Little Eva's full name), as well as two novels by Evelyn Waugh. More recently, there were Evangelines in the films Nanny McPhee and Disney's The Princess and the Frog.

Evangeline

Evangelyn

Evanna is the name of a Harry Potter actress who pronounces it ee-vah-na. This might be considered another international feminine form of the many variations of John; Ivana, Giovanna, and even Joan are cousins of Evanna. It could also be a compound name, combining Eva and Anna.

Evanna

Evanthe is a pretty Greek name not often heard outside its native culture.  With its stylish Ev-begining, Evanthe could make an interesting choice if you're looking for a generic flower name.

Evanthe

Eve, the oldest name in the Book, is now coming back into style, having the virtues of simplicity and purity, yet with more strength and resonance than other single-syllable names like Ann. British actor Clive Owen chose Eve for his daughter, as did Jessica Capshaw. 
 
While Eve is compromised by its similarity to trendy sisters Ava, Eva, Avery, Evelyn, Evie, ad infinitum, it still has them all beat with its streamlined classic style.
 The rapper born Eve Jihan Jeffers goes by the mononame Eve.
 Fictional Eves have figured prominently in the films All About Eve, Three Faces of Eve, and WALL·E, and on TV in Angel and Xena: Warrior Princess.
 Eve is the anglicized form of the Gaelic Aoife.

A popular name in the Middle Ages, Evelina was eclipsed by Evelyn in the last century, but has a chance at a well-deserved comeback now, fitting right in with the other Ev-names. Like Evelyn, it derives from the Norman name Aveline.

Evelina

Eveline

Ever is a name we first heard via the now grown-up Ever Carradine, daughter of Robert. It's a truly unusual and simple name with an evocative meaning. Milla Jovovich and Paul Anderson chose it for their daughter.
 Ever has ties to (primarily male) names in the Scandinavian and Hebrew cultures.
 The psychic protagonist of Alyson Noel's YA fantasy novel Evermore is named Ever Bloom.

Ever

Everest has an attractive enough sound and lofty enough meaning to come into style, à la Sierra. George Lucas bestowed this aspirational name on his baby daughter.

Everest

Evetta

Evette

Evgenia

Evia

Eviana

Evita

Evonna

Evony

Evaleene

Evalene

Evangela

Evania

Evascka

Everette

Evergreen

Everleigh

Evika

Evite

Evonne

Aurra's list "Av- and Ev- Names: Putting a New Spin on Ava and Evelyn" of 55 great name ideas: Aoife - Evonne!

Av- and Ev- Names: Putting a New Spin on Ava and Evelyn

Once upon a time, not so long ago, was a time when Ava was barely on the charts and Evelyn long gone from the top 100. Now, Top Ten Ava is a contender for the number one name of the year and Evelyn is sitting comfortably at 24. Unisex Avery is enjoying slot 18 as a girl's name that has more tomboyishness than Ava. Evie, diminuitive of Evelyn, is rising fast, and has hit the coveted top 10 in the UK.

Once upon a time, Av- and Ev- names were considered rare, exotic jewels. As this trend sees no signs to slowing down, many are looking for alternatives to the uber popular names that fill up three slots on kindergarten rosters. Look no further. Av- and Ev- names without a mark on the top 100 still exist.