Nina O'Brien (born November 29, 1997) is an American World Cup alpine ski racer and specializes in the technical events of giant slalom and slalom.

[1] O'Brien competed for the United States at the 2022 Winter Olympics,[1] and was in sixth place in the giant slalom after the first run.

She crashed near the finish of the second run, suffering multiple leg fractures.

[2] O’Brien rehabbed from this devastating injury and returned to competition, teaming up with Paula Moltzan, Tommy Ford, and River Radamus to win gold in the team event at the 2023 World Championships.

[3]