Lee Hyuk-jae (born April 4, 1986), better known by his stage name Eunhyuk, is a South Korean singer, songwriter, rapper, dancer, and television host. He is a member of the South Korean boy group Super Junior and its subgroups Super Junior-T and Super Junior-H. In 2011, he joined Super Junior's Mandopop subgroup Super Junior-M and the duo Super Junior-D&E, active in China and Japan respectively.

Gaining attention as the main dancer of Super Junior, he branched out with solo activities beginning as radio host through Super Junior's Kiss the Radio (2006–2011). Through television, Eunhyuk has also been a cast member in popular variety shows such as Star King (2009–11), Let's Go Dream Team 2 (2009–2011) and Strong Heart (2009–2013). After Super Junior's Devil promotions, he enlisted for military service between 2015 and 2017. Returning to work with a focus on more prominent roles, he was sanctioned as a concert director for various artists, transitioning to be a performance director and dance mentor in Under Nineteen (2018–2019) as well as become the main host of long-running idol program Weekly Idol (2020–2023).