Stella Hemetsberger

Stella Hemetsberger (born January 28, 1999) is an Austrian kickboxer and Muay Thai fighter. She is currently signed to ONE Championship, where she is the reigning Women’s Strawweight Muay Thai World Champion.

As of March 2024, she was the No. 5 ranked −57.5 kg kickboxer in the world by Beyond Kickboxing.

Biography and career Stella Hemetsberger was born in Vienna in 1999 and grew up in Salzburg. She started to train in Muay Thai in 2012 at the RS-GYM Salzburg club under coach Roland Schwarz. She is a mechanical engineering graduate.

She started to compete as an amateur in 2016 and became Austria K-1 champion the next year.

Hemetsberger faced Francesca Prescimone at KOK 109 in Vienna on February 18, 2023. She lost the fight by unanimous decision.

On February 24, 2024, Hemetsberger faced reigning WAKO Pro K-1 European champion Débora Évora at UAM Fight Night K1-PRO in Abu Dhabi. She won the fight by split decision.

Hemetsberger made her RWS debut on March 23, 2024, against Gisele Werth. She won the bout via unanimous decision.

Hemetsberger made her ONE Championship debut on October 4, 2024, at ONE Friday Fights 82. She faced Chellina Chirino. She won the bout via unanimous decision.

Hemetsberger faced Anna Lia Moretti on March 7, 2025, at ONE Friday Fights 99. She won the bout via unanimous decision.

Hemetsberger faced Vanessa Romanowski on April 11, 2025, at ONE Friday Fights 104. She won the bout via KO, dropping Romanowski with a head kick.

Hemetsberger faced Jackie Buntan on September 5, 2025, at ONE Fight Night 35. The bout was for the vacant ONE Women's Strawweight Muay Thai Championship. She won the bout via unanimous decision, dropping Buntan twice in the opening round.

Championships and accomplishments Professional ONE Championship 2025 ONE Women's Strawweight Muay Thai World Champion (One time, current) One successful title defense 2026 ONE Women's Strawweight Kickboxing World Championship (One time, current)

Amateur World Association of Kickboxing Organizations 2023 WAKO World Championship K-1 -60 kg Gold 2023 WAKO Hungarian World Cup K-1 -60 kg Gold 2023 WAKO Italian World Cup K-1 -60 kg Winner 2022 WAKO Hungarian World Cup K-1 -60 kg Gold 2021 WAKO World Championships K-1 -60 kg Silver 2021 WAKO Hungarian World Cup K-1 -60 kg Gold 2019 WAKO World Championships K-1 -60 kg Bronze 2017 WAKO European Championships K-1 Older Junior −60 kg Gold World Games 2022 World Games Kickboxing −60 kg Gold International Federation of Muaythai Associations 2023 IFMA European Championship −60 kg Bronze

Fight record