Who is Aang and Katara's only daughter?

Kya is Aang and Katara’s only daughter. She is the couple’s second child and one of the three children they have in The Legend of Korra.

Kya is a waterbender and healer who inherited her mother’s element. Her brothers are Bumi, who is initially a nonbender, and Tenzin, the only one of the three raised as an airbender. Kya’s name honors her maternal grandmother, Katara and Sokka’s mother, who died during a Fire Nation raid.

As an adult, Kya remains closely connected to the Southern Water Tribe and to her mother. She and Bumi sometimes feel that Aang favored Tenzin because Tenzin carried on the Air Nomad legacy. That family tension becomes part of the second season’s exploration of Aang’s life as a father, rather than only as the legendary Avatar.