Hacinthia

Sounds like a variant of Heidi or Hailey, but Haidee is actually a separate name with a literary history, used in Byron's epic poem Don Juan.

Haidee

There are no less than ten different variations of Hailey on the current Most Popular list, but this is the spelling that brought it into the Top 10 of 2010, although it has recently dipped a bit in popularity. So, although Hailey has a shiny, unpretentious charm, its mass popularity makes it very much of the moment. Look for the Hailee spelling to rise via Hailee Steinfeld, the young actress Oscar-nominated for her performance in True Grit.

Hailey

Halcyone

Halia is one of Hawaii's top baby names, in the Top 50 for girls in 2021. But it's rare outside its native Hawaii, given to only 57 baby girls in the US last year.

Halia

The Halley version of this popular name family hit the Top 1000 only once, in 1986, inspired by Halley's Comet, named for astronomer Edmund Halley.

Today, Halley is still used -- it was given to 50 baby girls last year -- but is much less popular than many other spellings of the name, which include Hailey, Haley, Hallie, and Hayley.

Halley

Hanako has a delicate sound and quaint meaning -- but there's a catch. According to widespread urban legend in Japan, Hanako is the name of the ghost of a little girl who haunts school bathrooms, who sometimes answers if you call her name. The so-called "Hanako of the Toilet" has been the subject of countless fictional adaptations since the rumor started to circulate in the 1950s. Hanako was once such a common name that it was used in the Japanese equivalent of "Jane Doe," but it's gotten much less popular as the legend of Hanako-san has spread.

Hanako

The added h turns Anita alluring and breathy. 

Hanita

Hannah is one of the nation's top biblical girls' names—it surpassed Sarah in 1998, and ranks in the Top 50 along with Elizabeth, Abigail, Chloe, and Naomi. Hannah is a name with many sources of appeal: Old Testament roots, soft and gentle sound, and a homey yet aristocratic image.
 Hannah originated as a variation of the Hebrew name Channah, derived from the word channan, meaning "grace." In the Old Testament, Hannah is the mother of Samuel. 
 
Names including Anne, Anna, Nancy, Anya, Annika, and Annabel are all related to Hannah. Alternate spellings such as Hana, Hanna, and Chana are also used.
 The TV show Hannah Montana was a huge TV teen sensation from 2006 to 2011, and more recently was the name Lena Dunham chose for her own character in her hit series Girls. Hannah Baker is a central character on the Netflix show 13 Reasons Why.
 Hannah is also a name that in its varied versions, which include Hana and Hanna, has roots in many cultures, from Hebrew to Arabic, European to Asian. All in all, Hannah is still a wonderful if widely used name.

Hannah

A pretty and substantial German smoosh name, a combination of Hanne and Eleonore. Most popular in Germany from the 1930s to the 1950s. Former German Chancellors Helmut Kohl and Helmut Schmidt both had wives named Hannelore.

Hannelore

Harriett

A traditional possibility for a Japanese or Japanese-American child born in April or May. 

Haruko

Hassie

Politics aside, the Cuban capital is one of the most rhythmic of place-names. The question is: can politics be put aside? 

Havana

This flower name was one of the most popular in her class in the seventies and eighties (in the 1989 movie Heathers, every snobby girl in the high school clique bore that name). Now, though still pretty and evocative of the Scottish moors, it has faded in favor of other purplish blooms, having fallen out of the Top 1000 after having been as high as Number 3 in 1975, when it was given to close to 25,000 girls.

Heather

Heidi became known—and popular—via the 1880 eponymous children's classic by Swiss writer Johanna Spyri and, despite decades of American Heidis of all sizes, shapes, and personalities, the name seems permanently tethered to that spunky little girl on the Alpine mountaintop in the book and Shirley Temple movie. 
 The movie was released in 1937, and two years later the name popped onto the charts, and would, a few decades later, be a Top 100 name for close to twenty years. The prominence of Heidi Klum on Project Runway has given it a new recent bump.

Heidi

Helen is a name that has connoted beauty since ancient times – Helen of Troy was the the mythological "face that launched a thousand ships," over whom the ten-year Trojan War was fought. 
 

The name Helen has moved in and out of favor over the centuries, often alternating with Ellen. It was a Top 5 name for several decades of the early twentieth century, falling out of the Top 100 in the 50s. Now, after being unfashionable for decades, we see signs of a comeback for Helen—it's the kind of serious, unadorned classic many parents are returning to.
But if Helen still feels too plain for you, you might consider one of its many lovely variants: Helena, Elena, Eleni, Ella, Nellie or Nell, to name just a few.

 In Greek myth, Helen is the daughter of Leda and Zeus, who came to her mother in the form of a swan. Helen also has legions of real-life namesakes, including author and activist Helen Keller, politician Helen Gahaghan Douglas, newspaper reporter Helen Thomas, Cosmo force Helen Gurley Brown, Bridget Jones creator Helen Fielding, artist Helen Frankenthaler, and actresses Hayes, Mirren, and Hunt. Beatrix Potter's birth name was Helen.

Helen

Reddish dye that sounds as if it could be a real name — of the outdated, Old World, Yetta-Hedda variety.

Henna

Despite a return to such feminizations of male names as Josephine, Clementine, and Theodora, starchy Henrietta has not made it into that group. Still, if you look hard enough, you'll see that Henrietta has the same vintage charm. 
 The name arrived in England in 1625 via King Charles I's wife, the French princess Henriette Marie, who became known as Henrietta Maria. Her daughter shared her name but was known as Minette.
 It has been prominent recently through the bestselling book The Immortal Life of Henrietta Lacks, the story of the poor black woman whose cells became one of the most important tools in medical research. Henrietta Szold was a U.S. Zionist leader and founder of the Hadassah Women's Organization. 
 Henrietta has a number of charming vintage nicknames, including Etta, Hetty and Hattie.

Henrietta

Hermione's costarring role in Harry Potter has made this previously ignored, once stodgy name suddenly viable. Hermione could really take off once today's children start having kids of their own. 
 In ancient Greek myth, Hermione is the daughter of Spartan King Menelaus and his wife Helen; in pre-Potter lit, the name appears in Shakespeare's The Winter's Tale and in Walter Scott's novel The Fortunes of Nigel.

Hermione

Despite the possibility of gender confusion, the Hero in Greek myth was a woman. Myleene Klass got that when she chose Hero for her daughter, and Sam Taylor-Wood and Aaron Johnson used it as their daughter's middle--and we wouldn't be surprised to see more girls with this heroic name.
 In Greek legend young Leander swam across dangerous waters every night to court his beloved Hero. In Shakespeare's Much Ado About Nothing, Hero is the love interest of Claudio and cousin of Beatrice.

Hero

Place-name that suggests the highest heights and carries a hippyish aura. 

Himalaya

Hiroko

Pronunciation problems overwhelm this name. 

Hjördis

Honora and Honoria are two ways of softening the severity of Honor, while retaining its righteous meaning. They were predominant until the Reformation, when the Puritans adopted the abstract virtue names, and were introduced to Britain by the Normans.
 Honoria Blake is a character in the Dickens novel Bleak House.
 The Irish form of the name is Onora. A variant spelling is Honorah.

Honora

Short and catchy form of traditional Asian name. 

Hoshi

Though it may not be as sweet and gentle as, say, Violet, the purple-hued Hyacinth still might hold some appeal for the parent seeking a truly unusual flower name. 
 
In Greek mythology, Hyacinthus was a Spartan youth accidentally killed by Apollo, from whose blood sprang a beautiful and fragrant flower, and it is also the name of several saints; Hyacinth became exclusively female in the nineteenth century. To the ancients, Hyacinth was, in addition to being a bluebell-like blossom, the name of a precious stone.
 
Hyacinth Bridgerton is the youngest child of the fictional Bridgerton family, named in alphabetical order from A-H. There is a character named Hyacinth Robinson in Henry James's The Princess Casamassima and Hyacinth Bucket is the social-climbing character on the British sitcom Keeping Up Appearances, with sisters named Daisy, Rose, and Violet. To underscore her pretentiousness, Hyacinth Bucket insisted that her last name be pronounced as "bouquet".
 
You might also consider the Spanish version, Jacinta.

Hyacinth

Hypatia, an ancient Greek name, has a distinguished namesake: Hypatia of Alexandria was an early philosopher and scholar of mathematics and astronomy--as well as inventor of several scientific instruments.
 Hypatia's name has been claimed by second-wave feminists, as in the publication "Hypatia: A Journal of Feminist Philosophy," and she has a place setting in Judy Chicago's installation "The Dinner Party". In the film "Agora," Hypatia was played by Rachel Weisz.

Hypatia

Harrow 

Helissent

Herleva

ScarlettRobin's list "\Honorable H names [girls]" of 32 great name ideas: Hacinthia - Herleva!