Son Hyun-joo (born June 24, 1965) is a South Korean actor. Since 1991, he has starred in numerous television series and films, such as First Love (1996), To Be With You (2002), My Rosy Life (2005), Tazza (2008), My Too Perfect Sons (2009), Definitely Neighbors (2010), Secretly, Greatly (2013), and Empire of Gold (2013).

Most notable in his filmography are two low-profile projects in which he played the leading role, both of which became unexpected hits: critically acclaimed revenge drama The Chaser (2012), and mystery thriller film Hide and Seek (2013).