Yeo Woon-kay (February 25, 1940 – May 22, 2009) was a South Korean film actress and television personality. She was best known for Korean films such as , Bad Family and My Name is Kim Sam Soon. Yeo began acting while in high school. She continued to act while attending Korea University, where she studied literature. She became known for her work in , which is also called amateur student theater, during the 1950s and 1960s, alongside other contemporary Korean actors like Lee Soon-jae. Yeo was awarded the Life Achievement Award posthumously at the KBS Drama Awards in 2009.