Kiri's father avatar is Jake Sully.
In the movie Avatar: The Way of Water, Kiri is the adopted daughter of Jake and Neytiri. She was born on Pandora, making her a Na'vi born from a human-Na'vi hybrid. Kiri's biological mother is Neytiri's sister, Ronal, who was impregnated by a human sperm sample that was part of the Avatar program.
While Jake is not Kiri's biological father, he is her adoptive father and raised her as his own. He is a loving and protective father figure to her, and she sees him as her true father.