Seo Hee-ju (Korean: 서희주; RR: seohuiju; born November 18, 1993) is a retired wushu taolu athlete from South Korea.

Seo made her international debut at the 2009 World Wushu Championships where she finished sixth in qiangshu.

[5] She continued to hold this title at the 2017 World Wushu Championships in addition to winning the silver medal in qiangshu.

[8] After the start of the COVID-19 pandemic, her first major appearance was at the 2022 World Games where she won the bronze medal in jianshu and qiangshu combined.

A year later, she competed in the 2022 Asian Games (held in September 2023) and finished fourth in women's jianshu and qiangshu.