Nikki Hiltz

Nikki Hiltz
Hiltz in 2024
Personal information
NationalityAmerican
Born (1994-10-23) October 23, 1994
AgentMerhawi Keflezighi
Height5 ft 4 in (1.63 m)
Sport
Country United States
SportTrack, middle-distance running
Event(s)
1500 meters, mile
College teamArkansas Razorbacks (2015–18)
Oregon Ducks (2014–15)
ClubAdidas (2018–21)
Lululemon (2021–present)
Turned pro2018
Coached byTerrence Mahon (2018–20)
Mac Fleet (2020–21)
Mike Smith (2022–2025)
Juli Benson (2025–present)
Achievements and titles
Personal bests
Medal record
Women's athletics
Representing the  United States
World Indoor Championships
2024 Glasgow 1500 m
Pan American Games
2019 Lima 1500 m

Nikki Hiltz (/ˈhɪlts/ HILTS; born October 23, 1994) is an American middle-distance runner specializing in the 1500 meters and mile. Hiltz holds the American record in the mile and as of 2025, has won eight consecutive US titles across the mile and 1500m. Hiltz won a silver medal at the 2024 World Indoor Championships.

Hiltz competed collegiately for the Oregon Ducks and Arkansas Razorbacks.

They came out as transgender and nonbinary on International Transgender Day of Visibility, March 31, 2021. Hiltz was assigned female at birth and has been competing in the Women's category since childhood.

At the 2024 Paris Olympics, Hiltz finished seventh in the women's 1500 meter final.