Hong Eunki (홍은기), also known simply as Eunki, is a South Korean singer currently under Daol Entertainment. He was a member of the project group RAINZ.
He made his solo debut on July 19, 2019 with his first digital single "Blow".
In 2017, he participated in Mnet's survival show Produce 101 Season 2 but was eliminated in episode 8 and finished in 38th place.
Following the show's conclusion, he, along with other former contestants, debuted as a member of the project group RAINZ under KISS Entertainment in October 2017 before disbanding a year later.
On June 5, 2019, it was revealed that Eunki had left his previous agency and would be promoting on his own.