Julia Kay Gaffney (born May 1, 2000) is an American Paralympic swimmer who competes in international level events.

[1][2] Gaffney was brought up in a Russian orphanage before being adopted by an American family from Arkansas when she was five years old.

Gaffney wanted to play softball but due to her disability circumstances she found it too difficult, she was then encouraged to take swimming lessons and started competing in 2014.

[4] On April 14, 2022, Gaffney was named to the roster to represent the United States at the 2022 World Para Swimming Championships.

[5] On April 29, 2023, Gaffney was named to the roster to represent the United States at the 2023 World Para Swimming Championships.