Choo Hyo-joo (; born 29 July 2000) is a South Korean footballer who plays as a winger for Northern Super League side Ottawa Rapid and the South Korea national team.
After graduating from Ulsan College, Choo joined Suwon FC in early 2021. She made 65 appearances for Suwon over three years, recording 14 goals and eight assists. After leaving Suwon, Choo joined Incheon Hyundai Steel Red Angels, signing a two-year contract with an overseas release clause. After one season with Incheon she transferred to Ottawa Rapid FC of the newly-formed Northern Super League. She started in Ottawa's inaugural match, a 2âÂÂ1 victory over AFC Toronto. On 28 November 2025, Choo signed a new contract with the Rapid, extending her time with the club through the 2026 Northern Super League season.
Between 2018 and 2019, Choo played for the South Korea under-20 team, scoring four goals in ten appearances.
She made her debut for the senior team on 15 December 2019 in a 3âÂÂ0 win against Chinese Taipei at the 2019 EAFF E-1 Football Championship, where South Korea finished as runners-up to Japan.
In July 2023, Choo was included in the squad for the 2023 FIFA Women's World Cup.