Kang Ye Won, known professionally as Kang Seo Ha, was a South Korean actress. She graduated from Korea National University of Arts with a degree in Acting.

She first appeared in the industry in 2012 as part of BRAVE GUYS' music video for their single, "Falling Away". She then made her acting debut in 2014 (using the stage name Seo Ha) with a role in the JTBC drama "Seonam Girls High School Investigators". She returned to her real name in January 2020 before changing it again to Kang Seo Ha the following year.

On July 14, 2025, an acquaintance posted a message on her IG notifying her death. Her agency, Insight MCN (인사이트MCN), later confirmed the news. She passed away at the age of 31 after battling stomach cancer. She was cremated at Seoul Memorial Park and laid to rest at Haman Cemetery in Gyeongnam.