Yunjin Kim (Korean: 김윤진, Hanja: 金允珍, born November 7, 1973 in Seoul, South Korea) is a Korean American film and theater actress. Although she is best known in the English-speaking world for her role as Sun-Hwa Kwon on the American television series, Lost, Kim has also appeared in numerous film and TV projects in South Korea.
Kim was born in Seoul, South Korea. At the age of ten, Kim immigrated to the United States with her family. They lived in Staten Island, New York. She joined the middle school drama club in the 7th grade and performed in the musical My Fair Lady.
Kim attended high school at the prestigious Fiorello H. LaGuardia High School of Music & Art and Performing Arts, a public high school located in Manhattan. From there, she went on to study drama at the London Academy of Performing Arts and later earned her drama degree at Boston University. She is a trained dancer and martial arts fighter.