Kim Jung-guk, known professionally as Jung Woo (Korean: 정우), is a South Korean actor. He is best known for his roles in the drama Reply 1994 (2013) and You Are the Best! (2013).

Reply 1994 is a 2013 South Korean television series starring Go Ara, Jung Woo, Yoo Yeon-seok, Kim Sung-kyun, Son Ho-jun, Baro, Min Do-hee, Sung Dong-il, and Lee Il-hwa. It aired on tvN from October 18 to December 28, 2013 for 21 episodes.