Jung Da-jung (Korean: 정다정, born March 29, 2000) is a South Korean actress from Seoul. She stands 165 cm tall and weighs approximately 43 kg. She is represented by Management Bomnal, a Seoul-based talent agency.

During her secondary school years, she served as student council president. She later pursued acting at the prestigious Seoul Institute of the Arts, where she earned a professional degree in performance.

Since then, Jung Da-jung has appeared in a variety of projects across television, film, and theatre, steadily building a career marked by versatility and dedication.