The name of the main protagonist of Avatar: The Last Airbender was coined for the movie from Chinese characters meaning "peaceful" and "rise; raise".

Aang is also used as a given name in Indonesia, where it derives from akang — a word used to refer to one’s elder brother or one of his peers.

Aang

In Egyptian mythology, Amon is a major god associated with creation and the air. He was later fused with the Sun god, Ra, and became Amun-Ra.
 
In the US, Amon is occasionally used as a variation of Ammon, primarily within the Amish and Mormon communities.

Amon

Asami

A character name from Avatar: The Last Airbender. Azula is one of the two main antagonists of the series: a Firebender who produces blue flames (hence her name, which is derived from Spanish, Portuguese and Galician azul, meaning "blue").

Azula

Aiwei

Appa

Arnook

Azulon

Also, unfortunately, better known as a chocolate syrup. Borden and Bosco could play well together. 

Bosco

Bataar

Bato

Beifong

Bolin

Bumi

Chey

Desna

Frisian short form of names that contained the Old Frisian element ēs, meaning "Æsir" (one of the two main pantheons of deities in Norse mythology). The name also appears in the animated series The Legend of Korra.

Eska

Fang

Fong

Originally a unisex nickname for a redhead -- red hair is called "ginger" in Britain -- or for the name Virginia, Ginger perennially wears pink gingham and spike heels. 

Ginger

Gyatso is a highly meaningful name in Tibetan Buddhism. It is added to the name of each Dalai Lama ⁠— the current one is Tenzin Gyatso. It is a translation of the title Dalai, which means "ocean" or "big" in Mongolian.

Gyatso

Ghazan

A short and straightforward name for a springtime child.

Haru

Several artistic Hiroshis make this one of the more plausible Japanese imports. 

Hiroshi

Hakoda

Hama

Hei Bai

Hou-Ting

Huan

Seen as both a given name and a surname in Japan. There was a Princess Izumi in eighth-century Japan, forbidden from marriage as her older sisters had already been paired off with the Emperor's sons. 

Izumi

Ikki

Irroh

This super-charged variation of Jett is on the rise -- along with the unlikely newcomer Jetson.

June, a sweetly old-fashioned month name derived from the goddess Juno, was long locked in a time capsule with June Allyson (born Ella) and June Cleaver, but is rising again especially as a middle name. 
 June was a Top 100 name from 1915 to 1941, peaking in 1925 at Number 39. It fell off the U.S. Top 1000 in 1987 and returned in 2008 after a two-decade hiatus. Now, we'd call it one of the vintage girls' names starting with J due for a comeback. Balthazar Getty has a daughter named June and Amanda Peet used it as her daughter Molly's middle name.
 Juni is the Scandinavian version; other related choices are Junia, Juno, Juna and Djuna.

June

Jeong Jeong

Jinora

Joo Dee

Kai is an internationally flexible name with many possible origins and meanings, growing in popularity in the US and a diverse range of European countries.
 
In the US, the name Kai is most commonly referred to as being of Hawaiian derivation, meaning "sea." In Europe, Kai is largely considered to have Frisian origin as a diminutive of the name Kaimbe, meaning "warrior", or as a short form of Gerard "brave spear". 
 
Kai is also found as an independent name in African, Chinese, Turkish and Native American cultures. Kai is a strong, evocative multi-cultural name that packs a lot of power in its single syllable. 
 
Famous as the name of the boy enchanted by the fairy-tale Snow Queen, Kai was chosen for her son by actress Jennifer Connelly and as a middle name for son Samuel by Naomi Watts and Liev Schreiber. 
 
Kai is popular with Berries as both a first and middle name choice. Perhaps because of its international familiarity, Kai is popular in video games. Its most prominent namesake is Danish-born jazz trombonist Kai Winding.
 
Kai ranks in the US Top 1000 for girls, but is used more than 90 percent of the time for boys. Donald Trump, Jr. has a daughter named Kai Madison and Gigi Hadid and Zayn Malik named their daughter Khai in 2020.

A prominent character name from the animated series Avatar: The Last Airbender, derived from an Arabic word meaning "(water) droplet" ⁠— Katara belongs to a water tribe.

Katara

One of the currently trendy Kaia-Maya-Mia family, deriving either from an elaboration of Kay or an alternative spelling of Kaia, a Scandinavian diminutive of Katarina.

Kaya

As Cora rises to become one of the most admired and popular <a href="https://nameberry.com/girls-names">names for girls</a>, more and more variations will arise. But given that the original Greek form is Kore, this one isn't as kree8if as it first may appear. Still, Cora's appeal is its history and simplicity, both negated by Korra.

Korra

Kanna

Kiyi

Kuei

Kuruk

Kuvira

Kuzon

Kyoshi

A name that has a bit of a shouldn't-I-be-a-middle-name sound, though still in use as a first for both genders. Lee might be a good choice if you want something that sounds at once traditional yet modern, unisex but not newly-minted. And while it absolutely works as a first name, Lee is still one of the top <a href="https://nameberry.com/list/480/middle-names-for-boys">middle names for boys</a> as well as one of the <a href="https://nameberry.com/blog/top-last-names-in-the-us">most common last names in the US</a>.

Long Feng

Lu Ten

Though this simple, appealing name works for both genders in Japan, it's best known as the name of the princess who chose to leave the Royal Family in order to marry a commoner. As a boys' name, it can be a short form of Makato.

Mako also means "shark" in Maori, and is the name of two shark species.

Mako

Milo is most commonly considered to be Germanic name derived from the Latin word miles, meaning "soldier." However, there is evidence to suggest it also may have independently spawned from the Slavic root milu, meaning "merciful." Milo predates brother name Miles, a variation that evolved when the name immigrated to the British Isles in the Middle Ages. Mylo is an alternate spelling.
 
Milo has long been a favorite <a href="https://nameberry.com/boys-names">boys' name</a> on Nameberry, also getting some well-deserved appreciation in the wider world. Milo combines the strength of the ancient Greek Olympic wrestler of that name—a six-time winner of the Olympic games—with the debonair charm of a WWII RAF pilot.
 More recently, Milo has been associated with the dashing Milo Ventimiglia of This Is Us fame, and it has also been the name of characters in books Catch-22 and The Phantom Tollbooth, and on screen in Milo and Otis, Alias, and Atlantis: The Lost Empire.
 Ricki Lake, Camryn Manheim, Sherry Stringfield, Liv Tyler, Craig Ferguson, and Alyssa Milano are six celebrity parents who share our enthusiasm for Milo, as do many Nameberry baby namers.
 Milo is often heard in Ireland. Milo O'Shea was a renowned Irish character actor.

Milo

Meng

Ming-Hua

Momo

This name of an ancient Egyptian princess could make a fitting choice for a bicoastal child. After an anomalous appearance at Number 855 in 1941, Nyla remained off the popularity charts until 2001, where it has remained ever since. Famous bearers of the name include Indian actress Nyla Usha and New Zealand long-distance runner Nyla Carroll.

Nyla

Naga

Opal is on the verge of a repolishing, following other jewel names like Ruby and Pearl. A Top 100 name during the first two decades of the twentieth century, the opalescent Opal has a good chance of coming back as another O-initial option.
 The ancient Greeks believed that opals were formed from the tears of joy wept by Zeus when he defeated the titans, and that the opal bestowed prophetic powers; the Romans considered it a symbol of hope and good fortune. It was a favorite gem of Queen Victoria.
 Opal Pelis is a character in Theodore Dreiser's seminal 1925 novel An American Tragedy.
 And keeping with the O theme, Opal is the birthstone of October, making it an appropriate choice for a little girl born in that month.

Opal

On Ji

Oogi

P'Li

Pema is related to the more familiar Hindu name Padma and means lotus flower. This delightful name was given to only 14 girls in the USA last year, so it's guaranteed to be a unique choice. Pema is probably most familiar to Westerners through Buddhist nun Pema Chodron and through Jetsun Pema, the Dalai Lama's sister. Note: Pema rhymes with Emma.

Pema

Parents are beginning to scan the whole spice shelf for inspiration, picking up on Saffron, Sage, and Cinnamon -- and opening up a chance for this spiciest possibility of all; used for peppy TV characters. 

Pepper

Poppy, unlike most floral names which are sweet and feminine, has a lot of spunk. Long popular throughout the rest of the English-speaking world, Poppy is finally starting to rise toward the top in the US, where it entered the Top 1000 for the first time in 2016.

 British TV chef Jamie Oliver used the name for his eldest daughter, Poppy Honey Rosie, as did Anthony Edwards, Jessica Capshaw, and Anna Paquin and Stephen Moyer. A notable adult Poppy is Australian Without a Trace star Poppy Montgomery (full name Poppy Petal Emma Elizabeth – she and her sisters are all named after flowers: Lily, Daisy, Marigold and Rosie).

 Due to the flower's bold crimson color, Poppy makes an especially good choice for a redhead. In the UK, it is a traditional <a href="https://nameberry.com/list/605/names-for-november-babies">name for November babies</a>, due to the flower's association with Remembrance Day (Nov 11), honoring the memory of members of the Armed Forces who have died in the line of duty.

 Other Poppy-like names to consider: Pippa, Piper, Posey and Petal.

Poppy

Pabu

Pakku

Pathik

Piandao

From India, but feels like an Irish surname (and can in fact be a variation of Rowan), so a possible cross-cultural choice. 

Rohan

This attractive mini-name combines multiple trends: the R initial, vowel-ending boy names, and a fantastical meaning.

Raava

Raiko

Roku

Sela is a Biblical place name, the original term for the city of Petra, which is finding new life through actress Sela Ward, star of several TV series. The young daughter of singer Lauryn Hill is named Selah, pronounced the same but with a different derivation and meaning. Found among early African-American enslaved people, it was sometimes spelled Cela or Cella.

Sela

Senna is a flowering bush common in the tropics, with bright yellow flowers.  In herbal medicine, Senna has gained some notice as the active ingredient in so-called "dieter's teas," which works mainly as a laxative.  While that is a less-than-savory association, Senna has a pretty sound and is a fresh entry in the flourishing botanical names genus.

Senna

Shaw is a streamlined and more modern-sounding Shawn, with many notable surname namesakes.

Shaw

As a Japanese name, Suki has the sweet meaning "loved one". It's also an English diminutive of Susanna, making it a creative and modern way to honor a Susan in your life.

Suki

Saikhan

Sato

Sokka

Song

Sozin

Suyin

Szeto

Tenzin (sometimes also written as Tenzing or Stanzin) is a unisex Tibetan name which is one of the
given names of the current Dalai Lama, Jetsun Jamphel Ngawang Lobsang Yeshe Tenzin Gyatso. 
A notable fictional bearer is Tenzin from The Legend of Korra. He is the youngest child of Aang and
Katara, from the prequel series Avatar: The Last Airbender. This is one of the <a href="https://nameberry.com/list/562/cool-unique-unisex-names">unique unisex names</a> and also one of the fashionable new <a href="https://nameberry.com/list/254/spiritual-baby-names">spiritual names</a> being used for babies.

Tenzin

An international take on Theo that would be easily wearable for a child in the US or any European culture. 

Traditionally a nickname for international variations of Theodore or Matthew, including ultra popular Mateo and Matteo, Teo can also stand on its own. In fact, Teo rose into the Top 1000 in 2022, proving its ability as a stand-alone name.

Tahno

Tarrlok

Tonraq

Toph

Carasynthia's list "Avatar Universe Girl and Boy Names" of 120 great name ideas: Aang - Zirin!

Avatar Universe Girl and Boy Names

Names from Avatar: The Last Airbender, The Legend of Korra, and the unreleased Legend of Genji.