Kim Ga-young (; born December 2, 1991) is a South Korean singer and actress. She is best known as a former member of the South Korean girl-group Stellar between 2011 and 2017. She is currently also the manager of her own cafe called "Hartogela" in Itaewon, South Korea.
Gayoung initially gained fame as the "Gugak high-school girl" when she appeared on a 2 Days & 1 Night special as a viewer. She was later scouted by the agency, Top Class Entertainment (which was later renamed The Entertainment Pascal). She entered the agency with the intention of being an actress, and she debuted as such in Spy Myung-wol, however her agency wanted her to sing and dance as well and she was soon debuted as an idol as part of the girl-group Stellar.
Stellar initially debuted with a quirky and cute concept, but as the agency was struggling financially due to multiple unsuccessful album releases, the girl-group later turned to a more provocative concept which received a lot of controversy and backlash.
In August 2017 she did not renew her contract with her then agency, The Entertainment Pascal, and started pursuing roles in acting for herself. In 2018 she revealed that she has opened a cafe called "Hartogela" in Itaewon and is running it while continuing to pursue her dream of being an actress.
On February 14, 2026, Gayoung announced to get married on February 28 according to a revealing message from advertising casting director A and the wedding will held in private.