Son Hyun-joo (born on June 24, 1965) is a South Korean actor. He has starred in numerous television series and films, such as First Love (1996), My Rosy Life (2005), My Too Perfect Sons (2009), Secretly, Greatly (2013), Empire of Gold (2013), The Chronicles of Evil (2015), and The Good Detective (2020–2022).

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). In year 2017, Son won the Best Actor award at the 39th Moscow international film festival for his role in the movie Ordinary Person.