Aang

Asami

Azula

Bolin

Bumi

Desna

Eska

Ikki

Iroh

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

Jinora

A word in the Yankton-Yanktonai and Santee dialects of the Lakota Sioux language, meaning "friend" or "ally", used for one of the main characters in the movie <em>Brother Bear</em>. Also a common Japanese surname or a respelling of the musical name Coda.

Koda

Kya, a variation of the popular Kaia, the feminine form of the also-popular gender-neutral name Kai, was one of the fastest-rising girls' names of 2023.
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Names starting with the ky (rhymes with by and why) sound are trending in general, with Kya along with four other names making up a full quarter of the fastest-rising names of 2023.

Katara

Korra

Kyoshi

Mako

Meelo

Momo

Ozai

Pema

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

Rohan

Roku

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

Sokka

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.

Tenzin

Toph

Ty-Lee

Tyro

Zhao

Zuko

Arlina's list "Names from the world of Avatar" of 36 great name ideas: Aang - Zuko!

Names from the world of Avatar

Including The Last Airbender and The Legend of Korra