Yoon Sook-ja (born June 6, 1948) is a South Korean cooking researcher and professor.

She got her master's degree in Food and Nutrition at Sookmyung Women's University, and took her doctoral course in Food and Nutrition at Dankook University.

She was the associate professor of Traditional Cookery at Baewha Women's University, and now she is the head of the Institute of Traditional Korean Food,[2] where she is also a professor in the Department of Food and Cooking.

Additionally, she is the head of the Tteok Museum.

[3][4] She was one of the people in charge of South Korea's return banquet at the 2007 Inter-Korean summit.